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Penstemon Delft Blue Riding Hood

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Shipping begins in late March based on ground temperatures, warmest zones first. Learn More…

Spiky, deep-blue blooms create a dramatic look all season long, blooming from early to late summer. This Penstemon is deer resistant and is perfect for freshly-cut bouquets. (Penstemon) PP#23065

Zones 5 - 8
Deer Resistant
Deer Resistant
Attract Butterflies
Attract Butterflies
Bee Friendly
Bee Friendly
Easy to Grow
Easy to Grow
Cut Flowers
Cut Flowers
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Mature Plant Size 18-24" tall, 18-24" wide
Bloom Time Early to late summer
Size Plant - 3" pot

Plant Information

There are over 250 Penstemon species, mostly native to our western states and Mexico. Their flowers range from blue to white to red, with several bi-colors. The common name, Bearded Tongue may surprise wildflower gardeners, since many of the the wild Penstemons are called Beard Tongue. But according to Allan Armitage and other perennial experts, Bearded Tongue is the correct common name for the perennials.

Common Name Bearded Tongue
Botanical Name Penstemon
Zones 5, 6, 7, 8
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color Blue
Mature Height 18-24" tall
Estimated Mature Spread 18-24" wide
Bloom Time Early to late summer
Planting Depth Crown of plant should rest just at or above the soil surface after watering in.
Ships As Potted Plant
Foliage Glossy leaves.
Native Yes
Planting Time Spring / Summer
Soil Type Sandy Soil, Loamy Soil, Clay Soil, Drought/Dry Soil
Soil Moisture Dry, Average, Well Draining
Advantages Deer Resistant, Attract Butterflies, Bee Friendly, Easy to Grow, Cut Flowers, Native
Ships to Hawaii, Alaska & Canada No


Shipping begins in late March based on ground temperatures, warmest zones first.

As soon as your order is placed you will receive an order confirmation email that will include your shipping information. We ship perennials and spring-planted bulbs at the proper planting time for your hardiness zone. Perennials and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

You will receive a second email the day your order ships telling you how it has been sent. Your order is scheduled to arrive at your door, fresh and ready to plant, usually within 3-5 days of leaving our warehouse, depending on your shipping address. We pack our plants to withstand up to 10 days in transit, in the event transit is delayed. We cannot guarantee arrival on a specific day. Please make sure to open your package upon receipt and follow the instructions included.

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Q & A

Plant with These

  • All Annual Wildflower Seed Mix

    All Annual Wildflower Seed Mix


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USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

Find Your Planting Zone:

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