MARTHASTEWART.COM

Newsletter

In this week's

  • Beautiful Crafts
  • Good Things
  • Our Favorite Recipes
get the newsletter
Home Page » Home & Garden » Gardening » Lucky clover: Oxalis tetraphylla Iron Cross

Lucky clover: Oxalis tetraphylla Iron Cross

cancel submit

What do you think of this? Let everyone know! (Click all that apply.)

cancel submit

SHARE THIS

Connect with Facebook to easily update your status and share photos, recipes, and more with your friends.

Connectcancel

More Ways to Share:

Ideal for containers or the flower garden, this ornamental lucky clover produces mounds of green leaves, each with 4 maroon-marked, triangular leaflets which meet to form a cross. In Zones 7 and colder, bulbs must be lifted and overwintered indoors.

Profile

Plant typeperennial,house-plant
Hardiness zones8 to 9
Lightlight-shade--filtered-sun
Height up to 6 in.
Spread up to 6 in.
Habitclump-forming
Soil pHslightly-acidic-to-neutral-pH6.5-7
Soil moisturemoist
Bloom timesummer
Flower colorpink
Bloom size1.5 in. to 1.5 in.
Foliage colormedium-green
Foliage size3 in. to 3 in.

did you know?

The genus name is derived from the Greek meaning "sharp" and meaning "salt," or "sharp salt," for the bitter and acidic taste of the sap. Unlike the tiny small-leafed species of a ubiquitous garden weed, many members of this genus are very ornamental.

general maintenance:

Remove yellowed leaves to promote a tidy appearance. Allow the soil to dry and leaves to fade in fall. in Zones 7 and colder, remove dead foliage and lift and store bulbs as you would dahlias in boxes of dry soil, sand or peat in a frost-free location.

pests/diseases:

Laefminers and spidermites may occur.

controls:

Remove leaves damaged by leaf miners. Regularly hose off spider mites with water, mist frequently to increase humidity, or apply insecticidal soap, following label directions.

how to sow/plant:

In xpring, choose a well-drained site and amend with compost or well-rotted manure. Set plants 2-3 inches deep, 2-3 inches apart. Mulch after planting.

water and fertilize:

Begin watering once new growth emerges in spring and maintain soil moisture all season. Apply a balanced, all-purpose fertilizer biweekly, following label directions. In fall, stop feed ing and reduce watering.

features:

  • Attractive Flowers
  • Attractive Foliage
  • Shade Tolerant

garden uses:

  • Containers
  • Flowerbed borders
  • Indoors
  • Rock Garden
  • Shade Woodland Garden

other uses:

    combine with:

    sweet alyssum (Lobularia mritima), and verbena in containers or use in drifts for color at the front of the border.

    Contributors' Comments Add Comment