Information for Penstemon gracilis

Approximately 21428.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

Penstemon gracilis - 250  seeds for 4 Euros
Penstemon gracilis - 1000  seeds for 8 Euros

B and T World Seeds' reference number: 70095
USDA average, annual, minimum temperature Zone:3
Type of plant - perennial
Flower: pale VIOLET
Fruit: (stratify 1 month, germin. cool)
Foliage: (cohabits well with native grasses, dryish soil)
Height in meters: 0.6

Synonyms (alternative names) for Penstemon gracilis: Penstemon glaucus, 

Common names for Penstemon gracilis: Lilac Beardtongue,  Slender Beardtongue,  Slender Penstemon, 

Penstemon gracilis is included in the following B and T World Seeds flowering plant categories:
1:   Stock list
43:   Herbaceous Border Plant Seed List
44:   Cut flowers Commercial and other Recommended Varieties
85:   Natives of U.S.South West (Arizona Texas New Mexico)
87:   Natives of Central U.S.A.
95:   Canadian Natives Central Area
169:   Sandy Soil Plant Seed List
185:   Plant Species whose germination is improved by Smoke
564:  Plantaginaceae
618:  Scrophulariaceae
700:   Humming Bird Nectar Plants

Germination guide
Penstemon gracilis seeds will usually germinate in 18-21 days. Normally will only germinate with light so surface sow. Sow seeds about 1mm deep in a Well drained seed sowing mix at about 15C.

Stratification (cold treatment or vernalization) Some seeds need to be overwintered before they will germinate. Some seeds need just a couple of weeks, others 3 months. Seeds can be stratified in dampened peat or sand, in a plastic box or bag at 4C or 5C in a refrigerator. The seeds should not be frozen or in a wet medium. Very small seeds can be sown on the surface of their growing medium, in pots sealed in plastic bags, and kept in the 'fridge. Many vernalized seeds need light to germinate when they are sown in the "Spring".

SEED GERMINATION THEORY AND PRACTICE; by Professor Norman C. Deno
B & T World Seeds Route des Marchandes, Paguignan, 34210 Aigues-Vives, France
fax ++ 33 (0)4 68 91 30 39   phone ++ 33 (0)4 68 91 29 63   [email protected]