THE CULTURE OF VEGETABLES AND FLOWERS FROM SEEDS AND ROOTS
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they are in final positions, and then, having taken hold of the soil,
they will bloom profusely until the end of the season.
Lobelias make elegant pot plants, yet, with the exception of the
_ramosa_ varieties which are excellent for the purpose, they cannot be
grown satisfactorily in pots. The difficulty is easily surmounted by
putting them out a foot apart in a good open position, and if possible
in a rather stiff soil. When they have developed into fine clumps lift
them with care and place them in pots, avoiding injury to the roots.
This method will produce a display of colour which cannot be attained
by exclusive pot culture.
From the best strains of seed it is possible that a few plants may
revert to long-lost characters. Florists are striving to obviate this,
but it will require time. Meanwhile there are two ways of dealing with
the difficulty. Some growers prefer to raise plants from seed, and take
cuttings from approved specimens for the next season. This plan insures
exactitude in height and colour, with almost the robust growth and
free-flowering qualities of seedlings. But it necessitates holding a
stock through the winter, and this may be a serious matter to many. The
simpler proceeding, and one which answers well in practice, is to raise
seedlings annually and to remove from the pans or boxes any plants
which show the least deviation from the true type. A few kept as a
reserve will replace faulty specimens which may be detected after
planting out.
The handsome perennial section of Lobelias obtains less attention than
it deserves, especially as the most ordinary routine culture will
suffice for these plants. They are partial to moisture, and also to a
deep rich loam. A sowing on moderate heat in February or March will
secure plants fit for bedding out in May. They may also be grown
entirely without the aid of artificial heat from sowings in June or
July. Employ pots or seed-pans, and pot off singly immediately the
plants are large enough to handle. The protection of a cold frame or
hand-light is all that is necessary during winter, and the planting out
may be done in May. These Lobelias reach two feet in height, and make
excellent companions to such flowers as _Anemone japonica alba_ and
_Hyacinthus candicans_. The dark metallic foliage and dazzling scarlet
flowers also have an imposing effect as the back row of a ribbon
border.
LUPINUS
Lupine. Hardy annual and hardy perennial
Both the annual and the perennial Lupines are extremely valuable for
garden decoration and for supplying an abundance of cut blooms. Each
class includes a number of charming colours and many of the flowers are
delightfully scented. Not the least of their merits is the fact that
Lupines are not particular as to soil; indeed, the annual sorts will
often thrive on ground that is too poor for other and more fastidious
subjects.
The annual varieties should be sown where intended to flower, as they
do not transplant well. Sow the seed in March, April, or May, and
subsequently allow each specimen a space of about eighteen inches for
development.
_L. polyphyllus_ is a valuable race of perennial Lupines which, from a
sowing made in March or April and treated as annuals, will produce a
fine show in the following autumn. In order to insure a display earlier
in the season, however, many growers of these flowers prefer to sow in
June and July of the preceding year. Two varieties of _L. arboreus_
form large bushes which are distinctly ornamental when in full bloom.
The seed should be sown in June or July and the seedlings transplanted
to flowering positions before they become very large.
MARIGOLD
Tagetes. Half-hardy annual
Marigolds of several classes are valued for the profuse display of
their golden flowers in the later summer months. The choicest are the
so-called French, or _Tagetes patula_, which have richly coloured
flowers, and some of the varieties are beautifully striped. For their
high quality these Marigolds are judged by the florists’ standards. The
African, or _Tagetes erecta_, make large bushy plants with flowers
‘piled high’ in the centre; the colours are intense orange and yellow.
in various shades. The bedding section is represented by the dwarf
varieties of _Tagetes patula_, or Dwarf French Marigolds; also by
_Tagetes signata,_ a very neat plant with fine foliage and rather small
orange-coloured flowers, produced in great abundance. In hot seasons
and on dry soils this proves an admirable substitute for the
Calceolaria, which does not thrive when short of food, whereas the
Tagetes bears drought, the shade of trees, and a poor soil with
patience, and up to a certain point with advantage. Sow all these in
March in a moderate heat, and prick the plants out in the usual way,
taking care finally to allot them sunny positions. Seed may also be
sown in the open ground at the end of April or early in May.
The section of Pot Marigolds, _Calendula officinalis_, includes two
remarkably handsome varieties, Orange King and Lemon Queen; the flowers
of both are large, double, perfectly formed, and are worth a place in
the choicest garden. These may be sown on the open border in March,
April, and May, and the best place for them is in the full sun on a
rather dry poor soil, but they are not particular, provided they are
not much shaded.
MARVEL OF PERU
Mirabilis Jalapa. Half-hardy perennial
This flower may be treated either as an annual or as a biennial. As an
annual the plants are very compact and effective, the leaves and
flowers forming round glittering masses in the late summer and autumn
months. When the roots are saved through the winter and planted out in
April larger plants are obtained, but there is no advance in quality
over the very neat and sparkling specimens raised from seed in spring.
Sow in heat in March and April, and treat in the same manner as Balsams
until the time arrives for planting out. A rich sandy loam suits them,
and they like full exposure to sunshine.
MIGNONETTE
Reseda odorata. Hardy annual
Mignonette is so much prized that we must devote to it a paragraph,
although there is little to be said. In many gardens plants appear year
after year from self-sown seeds, and it will therefore be evident that
Mignonette may be grown with the utmost simplicity. As a border plant
we have but to sow where it is to remain, at different times from March
to midsummer; the one important point is to make the bed very firm; in
fact the soil should be trodden hard. It is imperative to thin early
and severely, for any one plant left alone will soon be a foot in
diameter, and in some circumstances cover a much larger area. Where
bees are kept and space can be afforded, seed should be sown in
quantity, for Mignonette honey is of the finest quality in flavour and
fragrance. In pot culture it should be remembered that Mignonette does
not transplant well; therefore, having sown, say, a dozen seeds in each
of a batch of 48-or 32-sized pots, firmly filled with rich porous soil
to which a little lime or mortar rubble has been added, the young
plants must be thinned down to five, or even three, in each pot, as
soon as they begin to grow freely. If small plants are wanted early,
leave five in a pot; if larger specimens are wanted later, leave only
three, or even only one. For winter and spring, sow in August and
September and keep them as hardy as possible until it becomes necessary
to put them under glass for the winter. A further sowing for succession
may be made in January or February. Several strains of different tints
are now at the command of cultivators of this favourite flower.
MIMULUS
Monkey Flower. Hardy perennial
This flower will grow in almost any soil, although a moist retentive
loam and a shady situation are best adapted for it. There are many
varieties, differing in height, and all are worth growing, both in pots
and borders. If sown in February or March, and treated as greenhouse
annuals, they will flower in the first year. It is easy to raise a
large number of plants in a cold frame, and they make a rich display in
borders and beds later in the year. Sowings in the open ground during
summer will supply plants for blooming in the following season, but the
most satisfactory course is to grow them as annuals, and at the end of
the summer consign them to the waste heap. The Mimulus is quite hardy,
and the most ordinary care will suffice for it. Water in plenty it must
have, or the flowering period will be curtailed.
The well-known Musk is a Mimulus (_M. moschatus_), and is as easily
grown from seed as other varieties. It makes a valuable pot plant.
MYOSOTIS
Forget-me-not. Perennials, hardy and half-hardy
AT one time an impression prevailed that all the varieties of Myosotis
were semi-aquatic, and could only be grown satisfactorily in very damp
shady places. And it is quite true that most of them bloom for a longer
period in a moist than in a dry soil. Still, they all flower freely,
and last a considerable time in any garden border.
The only half-hardy variety that need be referred to is Sutton’s Pot
Myosotis, which is a delightful subject for flowering indoors at
Christmas time; and as Forget-me-nots are everywhere welcome, the
practice of growing plants in pots is rapidly increasing. Seed should
be sown in a cold frame in June, and the seedlings can be potted on as
required, taking care from the commencement to avoid crowding as a
precaution against mildew, to which the plants are very liable. The
strain referred to produces fine free-growing specimen plants, and a
batch should always be in reserve for cutting. For table decoration in
winter Forget-me-nots are very telling.
All the hardy varieties may be sown from May to July for a brilliant
display in the following spring. The seed should be put into a prepared
seed-bed under the shelter of a wall or hedge; and in autumn the plants
must be transferred to blooming quarters at the earliest opportunity.
Myosotis make an extremely effective groundwork for spring bulbs, for
which purpose _M. dissitiflora_ is the most valuable.
NASTURTIUM—_see_ TROPÆOLUM
NEMESIA STRUMOSA SUTTONI
Half-hardy annual
THIS beautiful South African annual is remarkable for its floriferous
character, long duration of bloom, and diversity of colour. Since we
introduced it to this country in 1888 it has attained great popularity
as a pot plant for table decoration, and some of the most resplendent
bedding effects in public parks and gardens have been secured with this
flower.
For an early show of bloom sow in pots or pans in March under glass,
using a compost consisting largely of good fibrous loam, with the
addition of a small proportion of wood ashes. No more heat than
necessary should be used, and when the seedlings are large enough to
handle prick them off and gradually harden for planting out in May.
Other sowings may be made in May and June, and at this period of the
year the seed germinates most quickly in boxes placed in a cool shady
spot out of doors. In early summer seed may also be sown in the open
border, and by thinning to a distance of six or eight inches sturdy
plants will be secured, which will remain in bloom until quite late in
autumn.
For winter and early spring flowering in pots seed should be sown in
August or September. There must be no attempt at forcing, or attenuated
worthless plants will result. A further sowing may be made in January
for blooming in the later spring months.
Like the seed of Verbena, Furze, and some other subjects, the
germination of Nemesia under artificial conditions is somewhat
capricious, but no difficulty will be experienced with open-air
sowings.
NICOTIANA
Tobacco. Half-hardy annual
The delicious fragrance of the Tobacco plant, especially during the
morning and evening, has made it a great favourite in the greenhouse
and conservatory, as well as in beds and borders near frequented paths.
As a pot plant too, the Nicotiana is exceedingly useful, the large
sweet-scented white, soft pink, and rich red coloured flowers being
very attractive. A group of plants placed in the porch will, in the
earlier and later hours of the day, as the door is opened, fill the
house with their delightful perfume. Seed may be sown from January to
June, and a continuance of bloom may thus be secured during nearly nine
months of the year. Prick off the seedlings as soon as they are fit to
handle, for if sown too thickly they are liable to damp off rapidly.
Gradually harden off if required for planting out in May or June. In
some places, more especially in the South of England, Tobacco seed sown
on an open sunny border early in May will produce fine plants that will
flower freely in August.
PANSY
Viola tricolor. Hardy perennial
The popularity of this flower has been greatly extended and the culture
simplified since it became the practice to raise the required number of
plants every year from seed. For all ordinary purposes the trouble of
striking cuttings and keeping stocks in pots through the winter is mere
waste of labour and pit-room. The Pansy is a little fastidious, but not
severely so. It thrives in a cool climate, with partial shade in high
summer, and in a rich, moist, sandy soil. Notwithstanding all this, the
Pansy will grow almost anywhere and anyhow; but as fine flowers of this
old favourite are highly prized, the plant should be treated with
reasonable care to do justice to its great merits.
A thick sowing is very liable to damp off: therefore sow thinly, either
in pots or boxes, in February and March. The thin sowing, moreover,
renders it possible to take out the forward plants without disturbing
the remainder. In due course transplant into pans or boxes of good
soil, and place in some cool spot where the plants may gradually harden
off. When they have become stocky, remove to beds or borders, with
balls of earth attached to the roots. Should the surrounding soil
become set by heavy rain or by watering, a slight stirring of the
surface will prove beneficial.
Seed sown in the open ground during the summer months will readily
germinate, and the seedlings need no attention beyond thinning to about
six inches apart until they are ready for transferring to their proper
positions, where they will produce a mass of bloom in the following
spring.
The Pansy puts forth its buds very early in the year. Whether they are
particularly tasty, or the scarcity of young vegetable growth gives
them undue prominence, we know not, but certain it is that sparrows
show a marked partiality for them. And having once acquired a taste for
the buds, these impudent marauders will not leave them alone; they
evidently regard Pansies as the perfection of a winter salad. Their
depredations can be prevented by an application of water flavoured with
quassia or paraffin oil, which must be repeated after rain.
PELARGONIUM
Greenhouse perennial
All kinds of Pelargonium may be raised from seed with the certainty of
giving satisfaction if the work be well done. An amateur, who
contributed to the production of symmetrical flowers in the Zonal
section, found that under ordinary treatment Zonals began to bloom in
one hundred days from the date of sowing the seed, and some of those
that flowered earliest proved to be the finest. The cultivator will
soon discover that one rule is important, and that is to sow seed saved
from really good strains. The simplest greenhouse culture suffices to
raise Pelargoniums from seed. Some growers sow in July or August;
others in January or February. The summer sowing necessitates careful
winter keeping, and the flowers appear earlier than those from
spring-sown seed. But the spring sowing is the easier to manage, and is
recommended to all beginners. Any light, sandy loam will serve for
these plants, and it is well to flower the principal bulk of them in
48-and 32-sized pots, for if grown to a great size the date of
flowering is deferred without any corresponding advantage.
PENTSTEMON
Hardy perennial
Penstemons when grown as half-hardy annuals are a valuable addition to
beds and borders, where they produce a brilliant effect in summer. In
borders it is not advisable to plant singly, but they should be
employed in groups of not less than one dozen. It is also important to
sow a strain consisting principally of scarlet and pink shades with
white markings, as well as white flowers; under fair conditions there
will be a profusion of richly coloured blooms on stately spikes about
two feet high. Sow in heat during February or March and plant out in
genial weather. It is not necessary to keep them after flowering has
finished, although seedling Pentstemons on comparatively dry soil in
favourable districts scarcely feel the winter. Seed may also be sown in
June, in the manner usual with hardy perennials, and the plants will
bloom in advance of those which are spring-sown.
PETUNIA
Half-hardy perennial
The Petunia affords another example of the immense strides accomplished
in the art of seed-saving. Formerly the colours were few, and the
blossoms comparatively insignificant. Now the single strains produce
large flowers, beautiful in form, including self colours and others
which are striped, blotched, and veined, in almost endless diversity.
Some are plain-edged, others elegantly fringed. The double varieties
also come so nearly true to their types that there is little necessity
for keeping a stock through the winter. Plants raised from seed of the
large-flowered strain embrace a wide range of resplendent colours, and
the doubles are perfect rosettes, exquisitely finished in form and
marking.
The only way of obtaining double seedlings is to save seed from the
finest single blooms fertilised with pollen of good double flowers.
Plants raised from such seed may be relied on to produce a fair
proportion of double flowers of great beauty, and those which come
single will be of the large-flowered type.
The dwarf varieties attain the height of five to eight inches only, and
make admirable edging and bedding plants. The taller strains range from
one to two feet, and are handsome subjects for border and shrubbery
work. Both dwarf and tall sections are sufficiently brilliant and
free-flowering to produce a beautiful display as pot plants in the
greenhouse and conservatory.
For indoor decoration, the third week in January will be early enough
to commence operations. Two parts of leaf-mould, one of loam, and one
of sharp sand, make an excellent soil for them. Fill the pots or
seed-pans within half an inch of the rim, and press the soil firmly
down. Sow thinly on an even surface, and cover the seed with almost
pure sand. Keep the pots or pans uniformly moist with a fine rose and a
light hand, and in a temperature of about 60°. Greater heat will render
the seedlings weak and straggling. From this condition it will take
some skill and much time to redeem them; indeed, they may not produce a
good display of flowers until the season is well-nigh over. Just as the
seed is germinating is a critical time for Petunias, and a little extra
watchfulness then will be fully repaid.
In February the sun has not sufficient power to do mischief, so that
shading is generally unnecessary. An even temperature and freedom from
draughts should insure seedlings strong enough to prick off by the end
of that month. Put the plants into seed-pans about an inch apart, so
that the first leaves just touch the soil, still using a light compost.
In April they should be ready for transferring to small 60-pots.
Subsequently they must be potted on as growth demands, until they reach
the 48-or even the 32-size. After re-potting place the plants in a
sheltered part of the house or frame, where shade can, if necessary, be
given until the roots are established. Frequent sprinklings of water,
and a temperature of 60° or 65°, will give them a vigorous start. The
lights ought to be put down in good time in the evening, but this must
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