Getting it to bloom

Why won't my Beardtongue 'Husker Red' bloom? (and how to make it flower)

Also called Husker Red Beardtongue, White Beardtongue, Foxglove Beardtongue (Penstemon digitalis).

More about beardtongue 'husker red'

About Beardtongue 'Husker Red'

Penstemon digitalis · also called Husker Red Beardtongue, White Beardtongue · flowering

An award-winning native North American perennial bearing white to pale pink tubular flowers above striking burgundy-red foliage from late spring through midsummer. 'Husker Red' is exceptionally cold-hardy, drought-tolerant once established, and an excellent pollinator plant. A 1996 Perennial Plant of the Year. Mildly toxic if ingested; keep away from browsing livestock.

Plant type: flowering

Watch for — Powdery mildew: Can appear in hot, dry summers followed by humid nights. Improve airflow between plants and avoid overhead irrigation. Cut back after flowering to encourage fresh, clean growth.

The reasons beardtongue 'husker red' isn't blooming

Almost every non-blooming beardtongue 'husker red' traces back to one of these, roughly in order of how common they are:

Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.
Too much nitrogen feed, driving lush foliage at the expense of flowers (very common with general or lawn feeds).
The plant has not been deadheaded, so it stops flowering once it sets seed.
Irregular watering — drought or waterlogging at the budding stage makes buds abort.
It is still too young or was checked by a transplant and is rebuilding before flowering.

Feeding beardtongue 'husker red' a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.

The fix — how to get beardtongue 'husker red' to flower

Maximise sun. Give beardtongue 'husker red' the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers.
Switch the feed. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.
Deadhead regularly. Remove spent flowers often to keep it producing more rather than stopping to set seed.
Water consistently. Keep moisture even through budding and flowering — drought-then-flood swings make buds drop.

Light and feeding do most of the heavy lifting here. Dial in the spot with the light guide for beardtongue 'husker red' and get the feeding right with the beardtongue 'husker red' fertilising schedule — the wrong feed (too much nitrogen) is one of the most common silent reasons a healthy plant makes leaves instead of flowers.

Bloom season and what to expect

Beardtongue 'Husker Red' flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.

Post-bloom care so it flowers again

Deadhead, keep feeding lightly, and many will rebloom; collect seed from the best plants at the end of the season if you want to grow them again.

For everything else this plant needs day to day, see the full beardtongue 'husker red' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Beardtongue 'Husker Red' blooming — frequently asked questions

Why won't my beardtongue 'husker red' flower?

Beardtongue 'Husker Red' blooms on the season's growth given enough sun, warmth and the right feed — there is no cold or photoperiod trick, just good growing conditions and a bloom-leaning feed. The most common reason it is not happening: Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.

How do I make beardtongue 'husker red' bloom?

Give beardtongue 'husker red' the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.

When does beardtongue 'husker red' normally bloom?