B & T World Seeds
log in or create an account
Click here for the
Penstemon cardwellii information page
germination advice, shopping cart,
all the sublists (specialist catalogues) Penstemon cardwellii is included in,
some description and snippets of information.
If seeds of
are not available in the quantity you need
Please click here.
The average, annual, minimum temperature zone where Penstemon cardwellii is cold hardy
USDA Zone:8 10° to 20°F (-12° to -6.5°C)
Approximately 2730.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.
Click a button to add that quantity to your cart
seed quantities can be multiplied once added to the cart