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Jelitto · Seeds of more than 3700 different species and varieties
PENSTEMON grandiflorus
Plant Description
| Life Cycle: | Perennial |
| Family: | Scrophulariaceae |
| Special Features: | Large flowering. |
| Basic Colour: | (violet) |
| Flower Colour: | Lavender blue |
| Natural Flowering Period: | June - August |
| Winter Hardiness Zones: |
Z3 - Z8
|
| Foliage: | blue-green |
| Height with Flowers: | 100 cm |
| Soil Requirements: | dry / well-drained / average |
| Location: | |
| Usage: | suitable for cutting |
| Portion weight: | 0.3 Gram |
| Grams per 1000 seeds: | 1.86916 Gram |
| Seeds per Gram (does not correspond to the number of plants!): |
535 |
| Gram to get 1000 plants (if sown directly into pots etc. you will need a larger quantity): |
5 Gram |
| Sowing Direction: |
(8) These perennial seeds germinate very irregularly over a long period. Lower temperatures of less than +5°C [41°F] are very effective. Seed trays should not be discarded prematurely. Constant moisture must be maintained. Do not leave in direct sunlight. For Alstroemeria we recommend to keep sowing for 3 weeks at approximately +30°C [86°F], then 3 weeks at +5°C [41°F], then at +21°C [70°F].
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