Tulipa clusiana 'Cynthia' (Cynthia Lady Tulip)


Botanical Information

FamilyLiliaceae
GenusTulipa
Speciesclusiana
Cultivar'Cynthia'
CategoryBulbs, Perennials
OriginUnder the horticultural classification system for tulips, this is a division 15 (Miscellaneous).

Details

USDA Hardiness Zone3a - 7b
USDA Hardiness Ref.
Canadian Hardiness Zone1a - 6b
Canada Hardiness Ref.
RHS Hardiness ZoneH5 - H7
RHS Hardiness Ref.
Temperature (°C)-40 - (-15)
Temperature (°F)-40 - 5
Height15 - 30 cm
Spread15 - 22 cm
GrowthMedium
Flowering PeriodMay

Description and Growing Information

General DescriptionTulipa clusiana 'Cynthia' is a Miscellaneous tulip with very narrow, erect, grey-green leaves and solitary, star-shaped flowers with pale yellow petals.
CultivationPlant bulbs 10 - 15 cm deep in a sheltered location in full sun, in well-drained, fertile soil. Protect from excessive moisture.
PestsPossible problems include: aphids, slugs, stem and bulb eelworm. Tulip fire is caused by a rapidly spreading fungus, Botrytis tulipae, affects all parts of the plant (leaves, stems and flowers). Leaves are malformed, developing in a twisted fashion. Leaves, stems and flowers develop tan or light brown spots. No fungicides are available, to remedy the condition remove and destroy any infected plants immediately. Do not plant tulips in affected area for 3 years. Tulip grey bulb rot is caused by the fungus Sclerotium tuliparum, (syn. Thizoctonia tuliparum). When infected, foliage may be malformed or fail to emerge. No fungicides are available, to remedy, remove and destroy affected bulbs. Do not plant tulips in affected area for 5 years. Tulip leaf spot is caused by Ilyonectia crassa which produces brown scaring on young leaves and leads to curing or holes when the leaf grows. No fungicides are available, to remedy, remove affected leaves and lower humidity around remaining foliage.
HabitatHorticultural origin.
Leaf DescriptionVery narrow, erect, grey-green.
Flower DescriptionSolitary, pale yellow petals form a star.

Photographs