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2024 Seed Catalog

Penstemon Sunburst Colours - Penstemon x mexicale


Sun­burst Colours

Penstemon Seeds

Penstemon x mexicale

Sunburst Colours penstemon produces flowers in riotous shades of pink, red, lavender, and purple. Most flowers will have white throats. The radiant flowers appear in early summer and continue to bloom into early fall. Foliage is glossy, narrow and attractive. Sunburst Colours penstemon is a first-year flowering, heavy-blooming 1.5 to 2 ft. tall perennial.

Plants are low maintenance, will tolerate both heat and humidity. Performance is outstanding when massed in the landscape, or mixed into borders and containers. Winter hardy to zone 5. Grow Sunburst Colours penstemon with Globetrotter agastache, Sterntaler coreopsis and Magnus Superior Echinacea.

30 seeds - $3.49
View all of our Penstemon varieties.

Growing Sun­burst Colours Penstemon Seeds

Bee introduces how to plant

Plant Penstemon Seeds: Sow penstemon seed in cell packs or flats, press into soil, and barely cover. Kept at 60-70° F., germination in 14 to 30 days.

Grow Penstemon: Penstemons prefer full sun, part sun in hottest climates. Plants need little to moderate water once established. Avoid overly fertile soil. Flowers attract butterflies and hummingbirds. Plants are deer resistant.

Shipping Information

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Standard U.S. shipping is $5.99.
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Shipping to Canada is $13.99.
International shipping to all other countries is $15.99.

Satisfaction Guarantee

We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.