A Complete Guide to Successfully Growing Vibrant Ascot Rainbow Spurge Plants Indoors

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Robby

The beautifully variegated Ascot rainbow spurge plant, with its eye-catching green, pink, and white foliage, makes a gorgeous addition to indoor spaces While spurges are sun-loving plants ideally suited to outdoor gardens, it is possible to grow them successfully indoors with proper care and conditions. In this comprehensive guide, we will cover everything you need to know to nurture happy, healthy Ascot rainbow spurge plants indoors and enjoy their vibrant colors and textures all year round

Providing Optimal Growing Conditions

Ascot rainbow spurge thrives best with

  • Bright Light: At least 4-6 hours of direct sunlight daily. South or west-facing windows are ideal. Supplement with grow lights.

  • Warm Temperatures: Average room temps of 65-75°F during the day and above 55°F at night. Avoid drafty areas.

  • Good Air Circulation: Use fans to circulate air and prevent disease. Avoid stale, humid conditions.

  • Well-draining Soil: Use a general potting mix amended with perlite or pumice for drainage.

  • Moderate Water: Water when the top inch of soil is dry. Avoid excess moisture.

  • Average Humidity: 40-60% humidity is ideal. Use a humidifier or pebble tray if dry indoor air is an issue.

Closely mimicking these natural growing conditions will set your Ascot rainbow spurge up for success indoors. Pay close attention to providing sufficient light.

Choosing the Right Pot or Planter

Use a container with drainage holes at least 2-3 inches wider than the spurge’s root ball. Shallow pots work better than deep containers. Terra cotta, plastic, ceramic, and self-watering pots are suitable choices. Make sure the planter is proportional to the plant’s size.

Using the Proper Potting Mix

A lightweight, well-aerated potting mix is critical for healthy spurge roots and good drainage. Pre-made cactus and citrus mixes work well. You can make your own by combining:

  • 2 parts peat moss or coco coir
  • 1 part perlite or pumice
  • 1 part compost

Adjust amounts as needed to create a loose, fluffy texture.

Caring for Your Ascot Rainbow Spurge

  • Water thoroughly whenever the top 1-2 inches of soil become dry. Avoid wet feet.

  • Fertilize monthly in spring and summer with a balanced liquid fertilizer diluted to half strength.

  • Prune overgrown shoots and pinched-back tips to encourage fullness.

  • Clean leaves regularly with a damp cloth to prevent pests and improve light exposure.

  • Monitor for common issues like aphids, mealybugs, leaf spot, and root rot. Treat promptly.

  • Propagate new spurge plants from cuttings to expand your indoor collection.

With the right care, your Ascot rainbow spurge will thrive indoors for years of enjoyment. Its versatility also makes it easy to move outdoors for the summer.

Troubleshooting Common Indoor Growing Issues

Problem| Cause | Solution

how to grow ascot rainbow spurge plant indoors

Taxonomy Scientific name

Martins Spurge needs 0.5 cups of water every 12 when it doesn’t get direct sunlight and is potted in a 5″ pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

how to grow ascot rainbow spurge plant indoors

Water 0.5 cups every 12

Does your plant get direct sunlight? No Yes

Select the pot size

Greg is a plant care intelligence that has learned how plants work so you can grow with confidence!

Finding light for Martin’s Spurge in your home

Martins Spurge love being close to bright, sunny windows .

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Martins Spurge does not tolerate low-light .

Select your region to see how the current weather in your area affects the placement of Martins Spurge in your home .

Euphorbia ‘Ascot Rainbow’ (Spurge) // Very USEFUL perennial with UNIQUE foliage and flowers

FAQ

How do you take care of a rainbow ascot plant?

In warmer regions, it is best sited in part shade, avoiding afternoon sun. It prefers average, well-drained soil. ‘Ascot Rainbow’ typically does not need to be cut back after flowering. At the end of the season, it typically remains standing through the fall into early winter.

How to propagate ascot rainbow spurge?

Spring is best for propagation, avoiding fall and winter for Euphorbia ‘Ascot Rainbow’. Use sharp tools and rooting hormone for successful stem cuttings. Bright light, moderate temps, and careful watering nurture young Euphorbias.

Do you cut back Euphorbia ascot rainbow?

Grow Euphorbia x martini ‘Ascot Rainbow’ in well-drained soil in full sun to partial shade, such as in a gravel garden. Cut back flowered stems after flowering.

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