Getting it to bloom
Why won't my Prostrate Blue Noble Fir bloom? (and how to make it flower)
Also called Prostrate Blue Noble Fir, Blue Noble Fir, Glauca Prostrata Fir (Abies procera 'Glauca Prostrata').
More about prostrate blue noble fir
About Prostrate Blue Noble Fir
Abies procera 'Glauca Prostrata' · also called Prostrate Blue Noble Fir, Blue Noble Fir · flowering
Abies procera 'Glauca Prostrata' is a low-growing, spreading cultivar of Noble Fir native to the Pacific Northwest of North America, prized for its striking silver-blue needles. It hugs the ground or cascades over walls, rarely exceeding 0.5 m in height but spreading to 1.5–2 m wide over many years. The most important care fact is ensuring excellent drainage — soggy roots cause rapid needle drop and root rot. Abies species are not listed as toxic to cats or dogs by the ASPCA, though needle ingestion may cause mild gastrointestinal irritation.
Plant type: flowering
Watch for — Adelgids (Adelges spp.): Woolly adelgids form white, waxy tufts at the base of needles and on new shoots, causing needle yellowing and premature drop. Treat with a horticultural oil spray in late winter before bud break, or a systemic neonicotinoid applied to the soil.
The reasons prostrate blue noble fir isn't blooming
Almost every non-blooming prostrate blue noble fir 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 prostrate blue noble fir 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 prostrate blue noble fir to flower
- Maximise sun. Give prostrate blue noble fir 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 prostrate blue noble fir and get the feeding right with the prostrate blue noble fir 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
Prostrate Blue Noble Fir 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 prostrate blue noble fir care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.
Prostrate Blue Noble Fir blooming — frequently asked questions
Why won't my prostrate blue noble fir flower?
Prostrate Blue Noble Fir 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 prostrate blue noble fir bloom?
Give prostrate blue noble fir 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 prostrate blue noble fir normally bloom?
Prostrate Blue Noble Fir flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.
What should I do with prostrate blue noble fir after it flowers?
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.
What is the single biggest mistake stopping prostrate blue noble fir flowering?
Feeding prostrate blue noble fir a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.
Keep reading
- Prostrate Blue Noble Fir care — the full brief (light, water, humidity, problems, pet safety)
- Prostrate Blue Noble Fir light needs — usually the first thing to fix for flowers
- Prostrate Blue Noble Fir fertilising — the right feed for buds, not just leaves
- Should I water my plant? The simple check
- Why is my plant wilting? Wet vs dry
- Underwatered plant — signs and rehydration
- Why won't my peace lily bloom?
- Why won't my jade plant bloom?
- Why won't my tomato bloom?
- All 4114 bloom guides in the Growli library