Getting it to bloom

Why won't my Stiff Goldenrod bloom? (and how to make it flower)

Also called stiff goldenrod, hard-leaved goldenrod (Solidago rigida).

More about stiff goldenrod

About Stiff Goldenrod

Solidago rigida · also called stiff goldenrod, hard-leaved goldenrod · flowering

Stiff goldenrod is a well-behaved native prairie perennial with stout, upright stems, leathery blue-green leaves, and flat-topped clusters of golden flowers in early autumn. Far less aggressive than running goldenrods, it forms tidy clumps that draw bees, butterflies, and beneficial insects, thriving in dry, lean soil and full sun in meadows and borders.

Plant type: flowering

The reasons stiff goldenrod isn't blooming

Almost every non-blooming stiff goldenrod 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 stiff goldenrod 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 stiff goldenrod to flower

Maximise sun. Give stiff goldenrod 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 stiff goldenrod and get the feeding right with the stiff goldenrod 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

Stiff Goldenrod 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 stiff goldenrod care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Stiff Goldenrod blooming — frequently asked questions

Why won't my stiff goldenrod flower?

Stiff Goldenrod 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 stiff goldenrod bloom?

Give stiff goldenrod 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 stiff goldenrod normally bloom?