The Penstemon seed can be started indoors in starter trays or small pots in late winter. The flower seeds can be pressed into the soil but not covered. Keep the flower seeds moist. Before transplanting once frost have passed, harden off the seedlings for 10 days or more.
USDA Zones: 8 - 10
Depth: Cover lightly, seed should be visible
Plant Spacing: 16 - 20 inches
How long do penstemon seeds take to germinate?
around 21 days
For best results, sow seeds onto a good soil-based compost. Between February and April, or during September. Cover the seeds with fine grit or compost to approximately their own depth. Germination is variable but most commonly around 21 days, it can be quicker if kept at 15 to 20C.
Many take several weeks, months, and some even up towards a year depending on dormancy, region, season etc. It is important that the buyer understands that seeds are perishable products and seed germination can be adversely affected by such factors as mold/fungus, bugs, temperature, moisture content, light intensity, dormancy, care, contamination of planting media among many other reasons
Please stored in a cool, dry place
The loss caused by the climate conditions or improper cultivation techniques, seed prices outside the economic responsibility
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