Videos from CAST 2025: Three Sizes of Penstemons From Darwin Perennials
June 5, 2025 During Greenhouse Grower‘s visit to California Spring Trials 2025, Dr. Allan Armitage spoke with Chris Fifo of Darwin Perennials about its three series of hummingbird–attracting penstemons, all with different sizes:
- Penstemon ‘Rock Candy’ (Compact) – Zones 5A-8B
- Penstemon ‘Mountain Treats’ (Medium) – Zones 6A-9B
- Penstemon ‘Summit Sweets’ (Tall) – Zones 5A-8B
Learn more about each new penstemon variety by watching the following video, and keep up with more of our post-event CAST 2025 content here on the Greenhouse Grower website.
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Videos from CAST 2025: Three Sizes of Penstemons From Darwin Perennials
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