Black Shamrock (Oxalis Black Velvet) Pack of 5 plugs
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Black Shamrock (Oxalis Black Velvet) Pack of 5 plugs

Perfect for spectacular colour contrast to bring interest to any area of the garden.
  • Oxalis Black Velvet produces pure-white flowers with dramatic, dark-maroon foliage each summer.
  • Also known as the black shamrock, it's perfect for beds, borders and pots, preferring partial shade with free-draining soil or compost.
  • A proven winner in UK gardens, it is tough and easy to grow.
  • Perfect when grown in a container, this delicate-looking, gently trailing beauty is sure to turn heads wherever you plant it.
  • Supplied as a pack of 5 plug plants, plants reach H25cm x W30cm and will flower repeatedly through the summer.

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Item: 480117
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Black Shamrock (Oxalis Black Velvet) Pack of 5 plugs - Item: 480117
ONLY £12.99
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Full Product Details

Product Information

You'll not grow many plants with as much impact as this one! Oxalis Black Velvet produces pure-white flowers on slender green stems that contrast vividly and dramatically against the dark-maroon foliage each summer!

Also known as the black shamrock, it's perfect for beds, borders and pots, preferring partial shade with free-draining soil or compost, this delicate-looking, gently trailing beauty is sure to turn heads wherever you plant it.

A proven winner in UK gardens, it is tough and easy to grow. Perfect when grown in a container, where it can be given protection over winter as the bulbs are frost tender.

Supplied as a pack of 5 plug plants, plants reach H25cm x W30cm and will flower repeatedly through the summer.

What Is Supplied

Item 480117 supplied as:
Supplied as a pack of 5 plug plants. Flowers: May-September Height: 25cm (10')

Plant Care Information

Perfect In Pots
Perfect In Pots
Protect From Frost
Protect From Frost
Easy To Grow
Easy To Grow

Top Tips

After flowering, leave the foliage to die down naturally and cut back when it has turned yellow.

Care Information

  • The small bulbs of Oxalis will multiply over the years and the soil should be kept rather dry in the early summer until the plant starts into regrowth, before returning to regular watering.
  • Add a layer of horticultural grit to the planting hole to improve drainage as oxalis does not like cold wet conditions.
  • Use a general-purpose feed through the year.
  • Oxalis is frost-sensitive and should be protected overwinter. Plants are generally best grown in a pot and overwintered in a frost-free area.

Planting/Flowering Calendar

Best Time To Plant
When Your Plant Will Flower
When Your Plant Will Fruit
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Fully Grown Plant Dimensions (approx)

Plant Dimensions
20 cm
30 cm
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1. If you're not totally happy with your order, return it within 30 days and we'll replace or refund in full!
2. Should any hardy plant fail to thrive thereafter, we'll replace free of charge - you just pay the P&P
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