🌿 How to Grow Oxalis on Your Balcony — 3 Easy Tricks for Winter Blooms, Big Flowers & Stunning Color

By HanCarina
Sep 16, 2025

Oxalis still going strong — even in winter! These plants bloom profusely, with many small but very pretty flowers in different colors. Whether in sunlit afternoons or under the cool blue sky, Oxalis lights up the balcony beautifully. Their blossoms might be small, but they catch the eye and are perfect for home pots.

Here’s how to plant & care so you get winter blooms, lots of flowers, and the best color:

1. Timing & Planting

There are spring Oxalis, fall Oxalis, and varieties that bloom most of the year. For balcony planting, autumn planting (around September or October) is ideal.
If planted in autumn, bulbs planted now will likely begin blooming by December. If planted too late, you may have to wait until spring for blooms.

2. Pot Size, Soil & Planting Depth

If you have many bulbs, use a slightly larger pot; fewer bulbs → smaller pot. Avoid pots that are too deep or too large in diameter — they retain too much moisture and risk bulbs rotting.
Most Oxalis bulbs are very small — some the size of a green bean. Use about 1–1.5 inches (≈3 cm) of soil on top. When you first water, do it well; afterward, water lightly. Keep soil moist, not soggy. Once sprouting appears, move into more sunlight.

3. Sun, Fertilizer & Bulb Multiplication

If outdoor temperatures are mild, allow plants to grow outdoors (exposed to sunlight). Leaves will develop fuller and upright rather than leggy.
When foliage starts flourishing, switch to flowering fertilizer with more phosphorus & potassium — flower buds will increase, giving a burst of blooms.
Bulbs multiply quickly. Plant 10 bulbs this year, and you may have dozens to hundreds next season — especially if soil is loose, rich, and well-drained.

🌸 Why Oxalis is Ideal for Balcony & Winter Displays

Produces many small, beautiful blooms even in cool weather.
Great color variety.
Extremely forgiving — grow in pots, vary light, water carefully, and you’ll be rewarded with thousands of bulbs over time.