Ascot Rainbow (also known as Euphorbia x martinii) is an evergreen perennial developed for Planthaven's Watersaver series. Native to Australia, this variety is heat and drought resistant, offering variegated foliage in a compact habit of 16-20" tall and wide. Watersaver Ascot Rainbow excels in borders and containers, offering year-round color in zone 5-9. Cream, lime, and green flower bracts bloom atop green, blue, and red foliage from early summer through fall, turning pinker in cooler temperatures. Watersaver Ascot Rainbow flourishes with little water in full sun, a vibrant addition to any garden, front porch, or patio. Try White Manaus for a Baby's Breath Euphorbia or Golden Glory for a high-contrast perennial Euphorbia.
Watersaver Ascot Rainbow Selling Tips
Sell Watersaver Ascot Rainbow to customers looking for a low-maintenance evergreen perennial with unique foliage to add borders or containers. Ascot Rainbow offers many benefits, including variegated foliage with contrasting variegated flower bracts from early summer through fall and resistance to heat and drought. With a compact habit of 16-20" tall and wide, this plant is a vibrant spot of color in the landscape. Customers will love foliage that changes from green, blue, and red to pink as temperatures cool as Watersaver Ascot Rainbow is evergreen in zone 5-9. This cultivar is an obvious low-maintenance choice for winter interest. Create an attractive landscape or mixed container by pairing Watersaver Ascot Rainbow with Beardtongue, Osteospermum, Sedum, Achillea, and Daylily.
Coach Your Customer
1. Space plants 14-20" apart in well-drained soil in full sun.
2. Water once or twice per week.
General Growing Tips For Your Rooted Cutting Liner
For best results with Watersaver Ascot Rainbow, use well-drained soil in full sun. Maintain a pH of 5.8-6.2, an EC of 0.9-1.2, temperatures between 62-74, and medium feed (150-200ppm). Plant one rooted liner per 4-inch container, one to three per 6- or 8-inch container, or four to five per 10-inch container. This plant may be pinched as needed and doesn't require PGRs. You may see whiteflies.
Flowering
Variegated cream, lime, and green flower bracts bloom from early summer through fall.
Pinching
This plant doesn't require pinching.
Spacing
Space containers for adequate airflow around the base and foliage of each plant.
Height Control
This plant doesn't require PGRs.
Pests
You may see whiteflies.
Disease
This plant isn't prone to disease.
Planting Watersaver Ascot Rainbow Liners
We recommend planting one rooted liner per 4-inch or 6-inch container. Use well-drained soil and completely bury the ellepot in the center of the pot.
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Euphorbia Watersaver Ascot Rainbow Quick Reference Guide
4 Inch crop time
6-8 Weeks
Bloom Period
Fall, Summer
Color
Cream, lime, green
Habit
Compact
Height
16-20 Inches
Light
Full Sun
Minimum Temp
62
Perennial Zone
5-9
Water Needs
Light
Patented Plant
Yes
Current
Availability
Current Availability
12-08-2025 (Week 50)
0
12-15-2025 (Week 51)
0
12-22-2025 (Week 52)
0
12-29-2025 (Week 01)
0
01-05-2026 (Week 02)
0
01-12-2026 (Week 03)
0
01-19-2026 (Week 04)
0
01-26-2026 (Week 05)
0
02-02-2026 (Week 06)
770
02-09-2026 (Week 07)
1,050
02-16-2026 (Week 08)
1,190
02-23-2026 (Week 09)
1,050
03-02-2026 (Week 10)
1,400
03-09-2026 (Week 11)
1,260
03-16-2026 (Week 12)
1,190
03-23-2026 (Week 13)
630
03-30-2026 (Week 14)
1,330
04-06-2026 (Week 15)
1,400
04-13-2026 (Week 16)
1,400
04-20-2026 (Week 17)
1,400
04-27-2026 (Week 18)
1,050
05-04-2026 (Week 19)
1,330
05-11-2026 (Week 20)
630
05-18-2026 (Week 21)
840
05-25-2026 (Week 22)
700
06-01-2026 (Week 23)
1,400
06-08-2026 (Week 24)
1,400
06-15-2026 (Week 25)
700
06-22-2026 (Week 26)
700
06-29-2026 (Week 27)
700
07-06-2026 (Week 28)
700
07-13-2026 (Week 29)
700
07-20-2026 (Week 30)
0
07-27-2026 (Week 31)
0
08-03-2026 (Week 32)
0
08-10-2026 (Week 33)
0
08-17-2026 (Week 34)
0
08-24-2026 (Week 35)
0
08-31-2026 (Week 36)
0
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