Getting it to bloom

Why won't my Sterling Silver Linden bloom? (and how to make it flower)

Also called Sterling Silver Linden, Sterling Linden, Silver Linden (Tilia tomentosa 'Sterling').

More about sterling silver linden

About Sterling Silver Linden

Tilia tomentosa 'Sterling' · also called Sterling Silver Linden, Sterling Linden · flowering

A vigorous cultivar of silver linden prized for its uniform habit, glossy dark-green leaves with brilliant silver undersides, and exceptional heat and drought tolerance among lindens. Creamy-white fragrant flowers attract pollinators in summer. More pest-resistant than many other lindens and well-suited to urban planting.

Plant type: flowering

Watch for — Bee mortality from nectar: Tilia tomentosa flowers produce nectar high in the sugar mannose, which can be narcotic or lethal to bumblebees. Plant away from managed hive areas or accept some bee mortality as a natural occurrence.

The reasons sterling silver linden isn't blooming

Almost every non-blooming sterling silver linden 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 sterling silver linden 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 sterling silver linden to flower

Maximise sun. Give sterling silver linden 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 sterling silver linden and get the feeding right with the sterling silver linden 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

Sterling Silver Linden 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 sterling silver linden care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Sterling Silver Linden blooming — frequently asked questions

Why won't my sterling silver linden flower?

Sterling Silver Linden 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 sterling silver linden bloom?

Give sterling silver linden 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 sterling silver linden normally bloom?