Caring for balcony bougainvillea flowers: pruning, watering and natural flower stimulation

Balcony bougainvillea flowers need lots of sunlight, watering according to dry cycles, pruning after each bloom and safe canopy control. When the plant has too many leaves, you should adjust the sun, water and nitrogen instead of pressing the flowers too hard.

Summary: To bloom, bougainvillea flowers need lots of sunlight, a strong root system and a properly pruned canopy. On the balcony, taking care of bougainvillea not only makes the plant beautiful, but also keeps the plant neat, out of the way and not unsafe. If the plant has good leaves but few flowers, check the sun, water and nitrogen levels before thinking about strong flower stimulation measures.

Applies to: Bougainvillea grown in pots on balconies, terraces, porches and small urban yards.
Duration: Regular care every week, pruning after each flowering.
Difficulty level: Medium. There needs to be a balance between maintaining plant health and stimulating natural flowering.
Estimated additional costs: Low to medium, depending on need for fertilizer, shears and support frame.

Principles of caring for bougainvillea flowers in pots

bougainvillea flowers in the ground have a wide root system and can withstand drying better. Bougainvillea flowers in pots have limited roots, so they can easily dry out quickly on a sunny day but can also easily become waterlogged if the pot has poor drainage.

Principle:

Needs a lot of sunlight to differentiate flowers.
Water thoroughly and then let the substrate dry relatively before the next watering.
Prune after flowering to create new branches.
Do not fertilize excess nitrogen when you want the plant to flower.
Control branches so they don't extend dangerously over the balcony.

Good care is to make the plant healthy first, then adjust the water and canopy so that the plant blooms evenly.

Water

bougainvillea flowers do not like constantly soggy pots. But if left dry for too long, the tree may lose its leaves and decline.

How to water:

Check the surface of the substrate and the weight of the pot.
When the substrate is relatively dry, water it thoroughly.
Make sure water drains from the bottom of the pot.
Discard standing water in the liner tray.
Do not water again while the pot is still heavily damp.

On a hot day, small pots can dry out very quickly. When there is a lot of rain, you need to stop watering and check drainage.

Prune after flowering

After each flowering period, the tree needs to be pruned to produce new branches. Bougainvillea flowers often bloom on new branches, so too tangled or weak old branches will cause few and uneven flowers.

How to cut:

Cut off dry and weak branches.
Cut branches growing into the canopy.
Shorten branches that are too long, reaching out to the balcony.
Retain a strong main branch frame.
Use sharp scissors and clean them before cutting.

Do not cut too hard when the plant is weak, has just been repotted or has just experienced a prolonged heat wave. The tree needs enough leaves to recover.

Safe dispersion

The balcony has a narrow space so the bougainvillea canopy needs to be guided from the beginning.

Note:

Use soft string to tie the branches.
Do not tighten the rope to the branch.
Check the lanyard every few weeks.
Do not let branches extend beyond the railing.
Cut branches that are at risk of breaking, falling or blocking the path.

If the tree is placed at a high level, safety must come before the shape of the tree. A beautiful pot that falls easily or has branches that reach over the railing should not be kept.

When the tree has good leaves but few flowers

Common causes:

Lack of direct sunlight.
Fertilize with lots of nitrogen.
Water too evenly, the pot is always moist.
The canopy is too dense, only a few branches give enough light.
The plant is not strong enough after repotting.

How to adjust:

Increase sunlight if the location is still poorly lit.
Prune lightly for airy canopy.
Reduce nitrogen fertilization.
Water thoroughly then let dry relatively.
Supplement balanced nutrition after pruning, do not force the tree too much.

Do not force dry for so long that the tree loses many leaves. A weakened tree will have difficulty flowering sustainably and will recover slowly.

Nutrition after pruning

After pruning, the plant needs to recover its branches and leaves before the next flowering cycle. You can lightly fertilize with decomposed organic fertilizer, slow-release fertilizer or balanced nutrition depending on pot conditions.

Principle:

Fertilize when the substrate is moist enough, not too dry.
Do not fertilize close to the root with high doses.
Do not fertilize heavily when the plant is wilting or the roots are weak.
Reduce nitrogen fertilizer if the tree has too many leaves.

With small pots, fertilizing little but evenly will be safer than fertilizing all at once.

Follow flower buds

After adjusting canopy, sun and water, monitor branch tips:

Are the new shoots healthy?
Do flower buds appear at the tip of the branch?
Are the leaves falling too much?
Does the tree wilt strongly in the middle of the day?
After rain, does the pot have good drainage?

If the tree wilts strongly or loses a lot of leaves, check the roots and balcony floor heat. Hot concrete floors can cause small pots to lose water very quickly.

Checklist for taking care of balcony bougainvillea

[ ] Water thoroughly and then let the substrate dry relatively well.
[ ] Check drainage after rain.
[ ] Prune after each bloom.
[ ] Remove weak branches, branches that grow inwards and branches that cross space.
[ ] Pipe the canopy with a soft wire, do not tighten the branches.
[ ] Increase sunlight if the plant has good leaves but few flowers.
[ ] Do not force dry for a long time when the plant is in decline.
[ ] Record the watering date, pruning date and the time flower buds appear.

Mistakes to avoid

Pruning too hard when the tree is weak: the tree loses strength and buds are slow.

Let branches extend beyond the railing: unsafe and difficult to control when the wind is strong.

Long-term drying to stimulate flowers: the tree loses many leaves, declines and has difficulty recovering.

Add nitrogen when the plant has good leaves: the fewer flowers, the denser the canopy.

Not checking the rope: the rope tightens on the branch, causing damage to the branch.