Sherri

Sherri Care

Rydberg’s Penstemon

What is the plant

I've always considered the Penstemon family to be the royalty of our Western wildflowers. Their beauty and regal presence in bloom are unmatched by few other perennials. With over 300 species to choose from, there is a Penstemon (Beardtongue) for every type of planting; from rock garden to large-scale xeriscapes, there are a lot of great choices. Growing Penstemon is straightforward, as they are extremely resilient (when well matched to their planting site), and are excellent naturalizing plants when encouraged to re-seed themselves. And last but not least, Penstemon's nectar-rich flowers are indispensable to pollinators like bumblebees and hummingbirds.

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Lighting

Full Sun

Hardiness zone

min 4a

Difficulty

Easy

How to Care for the Plant

Water
Watering of well-established plants in medium to heavy soils should be seldom needed, but plants growing in light, free-draining soils might need watering every two weeks in dry spells.
Pruning
Deadheading to remove spent flowering spikes helps promote a long season of flowering.
Fertilizer
Each spring apply a balanced, general-purpose fertiliser at the rate of 70g per sq m (2oz per sq yd), followed by a 5-8cm (2-3in) mulch of well-rotted organic matter to help promote strong healthy growth

Disease diagnosis

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Sunlight
Full Sun, Part Shade
Soil
Enrich the soil with about a bucketful of well-rotted organic matter and 70g per sq m (2oz per sq yd) of balanced general-purpose fertiliser to aid good establishment.
Temperature
Tolerates cold to -15° F