Penstemon Barbatus Twizzle Scarlet

Additional Details

When to Sow

February to April

Flowers

June to September

Where to Sow
Sow seed onto the surface of  pots or trays of moist seed compost and cover with a very fine sprinkling of compost or vermiculite. Place container in a propagator or a warm place at a temperature of 15-20C (59-68F). After sowing, do not exclude light as this helps germination, which can take 1-4 months.

What to do Next

When large enough to handle, transplant seedlings into pots or trays. Plant out once plants are well grown, 30cm (12in) apart in a  well-drained soil in full sun or part shade.

Handy Tip 

Although Half Hardy , plants will often overwinter , to help with this always leave all the foliage on the plants through the winter , and cut back in April when new basal growth appears.


S/C 20