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Jelitto · Seeds of more than 3700 different species and varieties
GENTIANA cruciata 'Blue Cross'
Plant Description
| Life Cycle: | Perennial |
| Family: | Gentianaceae |
| Origin: | Cultivar. Species is native to Europe, Asia Minor, Caucasus and Siberia: mountain areas, meadows, forest margins. |
| Special Features: | Beautiful intense blue-violet blooms on compact durable, drought resistant plants. Very rich blooming, sturdy and upright flower stems, dense leaf rosettes with decussate, broadly lanceolate and glossy green foliage. pH-tolerant. Cut flower. |
| Historical: | Introduced by JELITTO PERENNIAL SEEDS in 2009. |
| Basic Colour: | (blue) |
| Flower Colour: | bright dark blue |
| Natural Flowering Period: | July - September |
| Flowering: | Second year flowering |
| Winter Hardiness Zones: |
Z3 - Z7
|
| Foliage: | spoon-shaped leaves that intersect to resemble a star or cross shape, decussate, broadly lanceolate |
| Growth Habit: | rosettes-forming / clumping |
| Height with Flowers: | 25 cm |
| Spacing between Plants: | 25 cm |
| Soil Requirements: | dry / gritty / well-drained / average |
| Location: | |
| Usage: | for the rock garden / suitable for cutting |
| Portion weight: | 0.012 Gram |
| Grams per 1000 seeds: | 0.12987 Gram |
| Seeds per Gram (does not correspond to the number of plants!): |
7700 |
| Gram to get 1000 plants (if sown directly into pots etc. you will need a larger quantity): |
1 Gram |
| Sowing Rates/Trays: | 8 per cell |
| Plug tray recommended size(s): | open flats / 72 / 128 |
| Sowing Direction: |
(1) Cold-germinators are still referred to as frost-germinators, although this isn’t quite correct. The sowing must be kept warm (about +18 to +22°C) [about 64 to 72°F] and moist for the first 2–4 weeks. After this period the sowing must be kept at a cold temperature (between –4 and +4°C) [between 25 and 39°F] for another 4–6 weeks. Colder temperatures of –5°C [23°F] are only advantageous for most species of the Ranunculus family. It is not so important if the temperature is higher or lower during the cooling period, but the cooling period has to be prolonged because the synthesis of the germination inducer, hormon-like acid, slows down or comes to a standstill.
|
| Best Sowing Date (northern Hemisphere, Field condition): |
late autumn - early spring |
| Sowing to Germination: | 8 - 10 weeks |
| Germination to Transplant: | 4 - 6 weeks |
| Transplanting to Potting: | 6 - 8 weeks |
| Container Size(s): | 1 plug per 8/9 cm (3 1/2") / 1-2 plugs per 11/12 cm (4 1/2") |
| Fertilizer: | Medium (150-200 ppm) |
