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Jelitto · Seeds of more than 3700 different species and varieties
IRIS sibirica 'New Hybrids'
Plant Description
| Life Cycle: | Perennial |
| Family: | Iridaceae |
| Origin: | Central and Eastern Europe, Caucasus |
| Special Features: | A wide range of seedling colors from dozens of the top new Iris sibirica cultivars. A durable, low maintenance species, highly meritorius. |
| Basic Colour: | (mixture) |
| Flower Colour: | mixture of light to dark-blue, purpur, pink and white to cream |
| Natural Flowering Period: | June - July |
| Winter Hardiness Zones: |
Z3 - Z9
|
| Foliage: | narrow, blue-green, sword-like |
| Growth Habit: | erect / clumping |
| Height with Flowers: | 80 cm |
| Spacing between Plants: | 60 cm |
| Soil Requirements: | moist / boggy / average |
| Location: | |
| Usage: | suitable for cutting |
| Portion weight: | 1 Gram |
| Grams per 1000 seeds: | 11.11111 Gram |
| Seeds per Gram (does not correspond to the number of plants!): |
90 |
| Gram to get 1000 plants (if sown directly into pots etc. you will need a larger quantity): |
30 Gram |
| Plug tray recommended size(s): | open flats |
| 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. (10) For these bigger hard-shelled seeds, mechanical damaging of the shell is helpful for quicker swelling. One method is to grind the seed in dry sharp sand. They can also be treated for several hours in a “softener” (Polyethylenglycol 6000), which is used for the production of plastic material.
|
| Best Sowing Date (northern Hemisphere, Field condition): |
late autumn - early spring |
| Sowing to Germination: | 8 - 10 weeks |
| Germination to Transplant: | 4 - 8 weeks |
| Transplanting to Potting: | 6 - 10 weeks |
| Container Size(s): | 1-2 plugs per 11/12 cm (4 1/2") / 2-3 plugs per 15 cm (6") |
| Fertilizer: | Medium (150-200 ppm) |
