B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Penstemon palmeri is cold hardy
USDA Zone:5 -20° to -10°F (-29° to -23.5°C)
|Type of plant - evergreen shrub
Flower or inflorescence:
frag. soft PINK - LILAC, tall spikes
capsule....(germ. 1-6 weeks)
ov.-lance. -15x9cm., waxy, toothed...pref. gravelly soil
|Height, in meters: 1.5
Height, in feet: 4.95
|Penstemon palmeri sales history
Common names for Penstemon palmeri:
|Palmer Penstemon, Palmer's Penstemon, Pink Snapdragon, Scented Penstemon,|
is included in the following
B and T World Seeds flowering plant categories.
|43||: Herbaceous Border Plant Seed List|
|55||: Fragrant or Aromatic Flower or Foliage Plant Seeds|
|57||: Arid and Dry Condition Plant Seed List|
|76||: Californian Native Plant Seed List|
|85||: Natives of U.S.South West (Arizona Texas New Mexico)|
|185||: Plant Species whose germination is improved by Smoke|
|"Smoke" contains a butenolide compound produced by certain plants when heated, it speeds up or starts the germination of seeds from many different genera.|
|698||: First Year Flowering Perennials|
|700||: Humming Bird Nectar Plants|
|719||: North American Native Ethnobotanicals|
|Including medicinal, dye, fiber, food, construction, ritual|
|952||: Wholesale Selection|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
require that their growing medium remains moist until germination.|
Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet,
the seeds may not get the oxygen they require.
Penstemon palmeri seeds will usually germinate in 18-21 days.
Penstemon palmeri seeds need to be "overwintered" before they will germinate.
Stratification; cold treatment or vernalization. Seeds of some species 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 4°C or 5°C 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".