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True
Blue Anchusas
By
R. BOBBITT, (N. Y.)
There
is a rarity about blue flowers that appeals to most
gardeners. Many flowers are called blue, but comparatively
few are a pure blue. Cataloges in general make little
distinction between blue and tones of purple. And in
association with other colors, blue is scarcely less
valuable than white. It conflicts with none, it softens
most, and it heightens many. The Anchusas (pronounce
it an-keu'-sah) bear blue flowers that are truly blue
and make lovely garden pictures in combination with
many other flowers.
Anchusa
is a member of the Borage Family and is related to Forget-me-not,
Heliotrope, Pulmonaria, Mertensia and other useful garden
plants. There are annual, biennial and perennial kinds.
In the colder sections of the country, the biennial
kinds are best treated as annuals. All make good sized
clumps of rather coarse, usually hairy foliage from
which the leafy stalks, bearing loose clusters of small
blue flowers, rise to a height of one-and-a-half to
five or six feet. They are not particular as to soil,
but the richer the soil, the ranker the growth. They
thrive in either sun or partial shade.
Anchusas
grow readily from seeds, and spring sown seeds (except
those of A. myosotidiflora) germinate readily in from
15 to 20 days. The seeds are about the size of mustard
seeds and are easily handled in a coldframe. The plants
are also easily increased by division.
A.
capensis Blue Bird, called the Cape Forget-me-not, has
brilliant indigo blue flowers on compact plants 15 to
18 inches tall. It blooms all summer. It is sometimes
listed as a biennial, but in most sections of the country
should be treated as an annual. There are other named
hybrids of A. capensis which are listed by some nurserymen.
A.
barrelieri is a two-foot perennial of bushy growth.
It has small deep blue flowers with white and yellow
centers very early in the spring. In some sections it
proves to be biennial.
Anchusa
italica and its varieties are hardy perennials. A. italica
Dropmore variety has rich gentian-blue flowers on plants
three to five feet tall.
A.
italica Opal makes stately plants five to six feet tall
with light blue flowers borne in attractive trusses.
Both this variety and the Dropmore variety make gorgeous
garden pictures combined with any of the Oriental Poppies.
A. italica Feltham Pride is said to be an improved form
more compact in habit. It is also a hardy perennial.
The four-foot plants are a mass of brilliant blue forget-me-not
like flowers in June. A. italica Morning Glory is a
lovely new introduction that is said to be reliably
perennial.
The
ever popular Russian Forget-me-not, A. myosotidiflora,
is the loveliest of all. Early in the spring (April
in my garden) it begins to bloom as soon as the leaves
break through the soil and it continues until the plant
makes a mound of heart-shaped foliage 18 inches high
that is almost hidden by sprays of flowers in a glorious
shade of blue. It is one of the finest plants for a
low border or large rock garden. In the border it is
charming with Daffodils and early Tulips with the double
white Arabis at their feet. In the rock garden, planted
at the top of a slight slope that is covered with Polyanthus
in shades of palest yellow to deepest red, it makes
an eye-arresting picture. It is one of those rare plants
that revels in partial shade. It is very hardy and a
long-lived perennial.
Seeds
of A. myosotidiflora sown in spring require 30 to 60
days to germinate and germination is variable and irregular.
Fall sowing in an open seed bed gets good results. In
the rock garden, where the soil is not disturbed by
digging, they self-sow prolifically and each spring
there are many baby plants. This Anchusa is easily increased
by division and transplants readily.
Blue
is a peaceful color and gives depth to the landscape.
When it is worn by such versatile plants as the Anchusas,
which ask so little in the way of soil or position,
the ingenious gardener will use it generously to soften
some aspects of his landscape, to glue a sunny garden
a shadowy, cool look, to give depth and change from
too many bright flowers, and to intensify those colors
which mingle with it to best advantage.
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