Penstemon ex dark-leaved form (Beardtongue) [20 Seeds]
Germination Information: I recommend these seeds for experienced seed-starters only, because they may require some patience. The easiest approach is to surface-sow (do not cover) the seeds in fall to late winter, setting them outdoors in a spot protected from mice so they can get a chilling period and then germinate when conditions are right in spring.
If you sow after February, set the pot in a plastic bag in your refrigerator for about 2 months before moving it to a warm, bright place for germination. (Remove the bag if the pot will be exposed to any direct sun.)
It is possible that these seeds could germinate if you sow them in warm, moist, bright conditions. But if you try that and no seedlings appear within 3 weeks or so, then try the refrigerator-chilling approach above before moving them back to warmth and light.
By the time the seedlings have a few true leaves, you may notice that some of them are distinctly green and others are tinged with red or purple. The reddish to purplish ones are most likely to have the darkest foliage in following years. The full color may not develop until the plants have gone through a winter, though.
Note that this information will not appear on the seed packet you receive.
Please read the description as well before ordering.
I collected these seeds from ‘Dark Towers’ beardtongue (Penstemon), which forms dense, evergreen clumps of basal leaves, then produces upright, 2- to 3-foot-tall stems topped with tubular, light pink to pink-tinged white flowers in late spring to early summer. The key feature of this selection is the particularly dark color of the leaves, stems, and seedheads. Seeds from this selection can produce seedlings with a range of foliage colors, from deep purple to purplish green to solid green (as shown in a couple of the photos here). They are all pretty, but if you’re looking for the richest foliage color, keep only the seedlings that are darkest after they have gone through at least one winter.
Harvested in September 2020. At least 20 seeds.
Please read the germination information as well before ordering.
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