How to grow Oxalis hirta

Oxalis hirta grow and care – leaf plant geophyte of the genus also known as Trailing Oxalis, Oxalis hirta perennial deciduous plant used as ornamental ground cover plant, can grow in subtropical or mediterranean climate and growing in hardiness zone 9-11.

Oxalis hirta leaves and flower

Leaves color green in oval shape grow in rosette structure.

Flower color pink-purple in flat shape with five petals

Oxalis hirta for sale – Seeds, bulbs or Plants to Buy

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How to grow Oxalis hirta growing and care:

Well-drained soil, some varieties need cool weather

How to care:
Add fertilize once a year, mulch when the plant go to dormant

What is the best way to start growing?
Plant / Seedling / Seed / Bulb/ Vegetative Reproduction

How to propagate:
Better to separate the bulbs in the dormant season, the main problem that the bulbs are small and hard to find, so if not possible to find the bulbs, take the plants and dived them, be aware the that the bulbs might be very deep and need to dig gently and dry to get the plant with the bulbs if not mostly the plant will die

Is it necessary to use vegetative reproduction?
No, but easier to start from bulbs than seeds

Difficulties or problems when growing:
Invasive, contain oxalic acid

Recommended planting season?
Spring to summer above 5C (41F) or autumn to winter in hardiness zone temperature less than 0C (32F)

When to plant bulbs?
Spring above 5C (41F) or autumn in hardiness zone temperature less than 0C (32F)

How to plant bulbs?
Planting in moist soil, rich soil, keep the soil moist and watering

How to plant:
Planting dig hole bigger than deep as the current root ball plus extra 90-200% bigger the plant small the percentage, put in the hole organic matter, hummus and dried leaves and mix it with some soil, put the plant and loos little bit the root ball above the hole, plant and cover it and don’t push the soil too much strong but not too much lightly because the plant might fall into the hole with the watering, after this put mulch to keep moist on soil, put water, for the next two weeks put every day (better in the morning), bulbs need to plant 2-5cm deep (1-2 inches).

Pests and diseases:
Powdery mildew, fungal

Pruning season:
Autumn above 5C (41F) or summer in hardiness zone temperature less than 0C (32F) or

How to prune a Oxalis plant:
For design and dead parts

Size of the plant:
10-20 cm, 4-8 inches

Growth speed in optimal condition:
Fast growing / Medium growing

Water requirement:
Average amount of water / Big amount of water

Light conditions in optimal condition for growing:
Full Sun / Half Shade

Is it possible to grow indoor as houseplant?
No

Growing is also possible in a planter /flowerpot / containers:
Yes, start with pot size that will be 3-6 liter (0.8-1.6 gallons), every time that plant arrive to full capacity need to switch to bigger until arrives to desirable size, better to use this method because the soil lose the viability over time and it’s efficient of care for the tree, when the plant big need to switch part of the soil, drainage it’s important and need to make holes, rich soil and organic matter, possible to take the bulb out of the soil in the dormant season

Blooming information

Bloom season?
Autumn / Winter / Spring

General information about the flower:
Pink-purple in flat shape with five petals

How to grow Oxalis hirta from Seeds

Sowing requirement:
Moist soil and humidity

Saving seeds and care until sowing:
Dry and dark place, keep the seeds in refrigerator

Sowing season:
Spring above 5C (41F) or autumn in hardiness zone temperature less than 0C (32F)

How to plant:
Planting in moist soil, better peat soil or other soil the keep the moist

Planting spacing:
2*3cm (0.8-1.2 inch)

Depth of Sowing:
0.5cm (0.25 inch)

Conditions for seeds germinate:
Important to keep the soil moist with high humidity don’t let it dry

Watering requires for Seeds:
Average amount of water / Big amount of water

Germination time:
3-5 weeks

Condition of seedling:
Moist soil, high humidity and half shade

Do the seeds require burying?
Yes

Chilling hour’s requirements:
At least one month in temperature that under 5C (41F)

Scientific name:

Oxalis hirta

How to grow Oxalis hirta

Oxalis hirta

Categories

Blooming Seasons
  • Autumn flowers
  • Spring flowers
  • Winter flowers
Flower colors
  • Pink flower
  • Purple flower
Climate
  • Mediterranean Climate
  • Subtropics Climate
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
  • Fast growing plants
Plant life-form
  • Deciduous
  • Geophyte
  • Leaf plant
  • Perennial plant
Plant Uses
  • Ground cover plants
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Winter planting
Plants sun exposure
  • Full sun Plants
  • Part shade Plants
Watering plants
  • Big amount of water
  • Regularly water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 9

Growing in Pots, Balconies & Indoors

This compact oxalis (10-20 cm / 4-8 in) is a bulbous plant the grower does not rate as a true houseplant – it wants strong light to bloom, so deep in a room it will stretch and sulk. It is, however, an easy and pretty subject for a sunny windowsill or a small balcony pot, and its bulb makes it simple to store while dormant.

Quick Details

  • Container Size: Start at 3-6 L (0.8-1.6 gal) and pot up as it fills the pot
  • Indoor Suitability: Not a deep-indoor houseplant; suits a bright, sunny windowsill
  • Best Spot: Full sun to light shade – the brightest position you can offer
  • Soil & Drainage: Rich soil with organic matter and free drainage; drainage holes essential
  • Watering in Pots: Average to generous while in growth; ease off as it goes dormant

Indoors & On the Windowsill

  • Houseplant limits: The grower does not treat it as a houseplant – away from a window the light is too weak for good flowering.
  • Windowsill growing: A sunny sill with direct light suits it well; keep it turned so growth stays even.
  • Dormancy & overwintering: It dies back to the bulb in its rest period; you can lift the bulb from the soil and store it dry, which also makes it easy to protect from cold.

On a Balcony or Patio

  • Light & wind: Give it the sunniest spot; small pots dry quickly against warm walls and railings, so check moisture often in hot weather.
  • Practicalities: Being small it is easy to move – a good candidate for a bright balcony shelf, brought in or stored dry over winter.

Choosing the Pot, Soil & Long-Term Care

  • Pot & drainage: A 3-6 L pot with strong drainage holes; skip a standing water saucer to avoid rot. Terracotta breathes and dries faster than glazed or plastic.
  • Potting mix: A rich, free-draining mix with plenty of organic matter.
  • Feeding: Potted plants exhaust their food faster as nutrients leach – feed lightly through the growing season only.
  • Repotting: Refresh the soil periodically, as potting mix loses structure over time; divide crowded bulbs when you do.

Grower’s Container Tip

  • Grow-into-the-pot method: Start in a 3-6 L pot and, each time the plant fills it, move up a size until it reaches the size you want – the grower prefers this because the soil stays fresher and care is more efficient. When it is large, swap out part of the old soil.
  • Lift the bulb: In the dormant season you can take the bulb out of the soil to store it – handy for cleaning up the mix or overwintering.

Bloom & Flower Guide

Quick Details

  • Bloom Season: Autumn through winter into spring
  • Flower Appearance: Five-petalled, funnel-to-flat flowers in pink-purple, opening in bright light and closing at night or in dull weather
  • Edibility: Best treated as ornamental – Oxalis is high in oxalic acid and should not be eaten in any quantity

Detailed Blooming Overview

Oxalis hirta is a small tuberous, trailing plant that comes into its own in the cooler months, flowering through autumn, winter and into spring while much else is resting. The bright pink-purple flowers each have five petals and open with the sun, furling closed again as light fades.

Flower Characteristics

  • Five-petalled pink-purple flowers, funnel-shaped opening to nearly flat
  • Flowers open in bright light and close at night or under cloud
  • A cheerful cool-season display above clover-like foliage

Bloom Care & Thinning

  • Managing the bloom: little is needed during flowering; after the display fades the plant naturally dies back to its tubers and rests over the warm, dry season
  • Site: full sun to light shade and free-draining soil give the most flowers in the cool season
  • Note: water sparingly once foliage yellows and the plant enters dormancy