Practical
Plants

Hosta tardiva

Nankai-Giboshi

a perennial member of the Hosta genus in the family Funkiaceae.

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Taxonomy and growth

Genus
Hosta
Life cycle
perennial
Height
0.5 m
Flower type
hermaphrodite

Uses

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Leaves and stems - cooked[2].

Plant part
Leaves

Environment

Range
E. Asia - C. and S. Japan.
Habitat
Relatively dry open areas[6].
Light
full sun
Shade tolerance
light shade
Water
moderate
Soil textures
sandy, loamy, clay, heavy clay
Soil pH
acid, neutral, alkaline
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - sow spring in a lightly shaded position in a greenhouse and only just cover the seed. Germination usually takes place within 1 - 3 months at 10°c. Make sure you keep the compost moist. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division is possible at almost any time of the year so long as there is sufficient moisture[5]. It is best carried out in March as growth commences or in early autumn if the soil is not too dry[3]. Hostas can be left undivided for many years and should not be divided any more frequently than once every 3 - 5 years to allow the leaves to reach maturity[3].

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

Thrives in most fertile soils if they are rich in humus[3]. Grows well in heavy clay soils and in sandy ones[4]. Very limy soils inhibit growth, but plants can thrive in such a situation if plenty of humus is added[4]. Prefers a pH between 6 and 7[3]. Requires a rich soil that does not dry out readily[1]. Succeeds in full sun as well as in deep shade, growing well in the semi-shade of a woodland[3][5]. In general, the sunnier the position the moister the soil should be[5]. Plants are best not grown under trees in town gardens since the soot washed from the leaves of the trees in wet weather will tend to remain on the hosta[4]. Plants flower better when grown in a sunny position but the foliage is better when the plant is in a shady position[3]. Plants are in general fully hardy in Britain, but young leaves in spring can be destroyed by frost. New leaves are only produced in the spring and very early summer, so any damage at this time has a deep effect on the plant[5]. Plants are very attractive to slugs and snails, the young shoots in spring are especially at risk[111, K]. Plants are very attractive to slugs, the young shoots may need protection[111, K]. This species is sometimes confused with H. lancifolia, differing mainly by its broader leaves and later flowering period[3]. Hybridizes freely with other members of this genus[3].

References

  1. F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00

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  2. Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984-00-00 ISBN 3874292169

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  3. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

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  4. Thomas. G. S. Plants for Ground Cover J. M. Dent & Sons 1990-00-00 ISBN 0-460-12609-1

    ↩1↩2↩3

  5. Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. 1990-00-00 ISBN 0 460 86048 8

    ↩1↩2↩3↩4

  6. Grenfell. Diana The Gardener's Guide to Growing Hostas David &Charles 1996-00-00 ISBN 0-7153-0431-3

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