Red Splendor
Red Splendor is a loose leaf rosette lettuce. Ready from roughly day 21. Germination takes 7-10 days. Space 6-12 inches apart. Full sun to partial shade (4-6+ hours).

Sowing
Direct sow after last frost, or start indoors 4-6 weeks before last frost
Cultivation
- Sun
- Full sun to partial shade (4-6+ hours)
- Water
- High — consistent moisture needed
- Soil
- Well-drained loam, rich in organic matter
- Spacing
- 6-12 inches
- Height
- 12-18 inches
- Season
- Warm season annual
Appearance & flavour
- Colour
- Deep red with burgundy tones
- Shape
- Loose leaf rosette
- Flavour
- Hot, mustardy peppery flavor with a bold, distinctive taste.
In the kitchen
Fresh salads, salad mixes, garnishes, heat-resistant summer greens
Pests, disease & resistance
- Pests
- Aphids, slugs, snails, flea beetles
- Diseases
- Downy mildew, lettuce mosaic virus, anthracnose
Planting calendar by USDA zone
| Zone | Start indoors | Transplant | Direct sow | Harvest |
|---|---|---|---|---|
| 1 | — | — | June – July | June – September |
| 2 | — | — | May – July | June – September |
| 3 | — | — | May – June | May – October |
| 4 | — | — | April – June | May – October |
| 5 | — | — | April – May | May – November |
| 6 | — | — | April – May | April – November |
| 7 | — | — | March – May | April – November |
| 8 | — | — | March – April | March – December |
| 9 | — | — | February – March | February – December |
| 10 | — | — | January – March | February – December |
| 11 | — | — | January – February | January – December |
| 12 | — | — | January – February | January – December |
| 13 | — | — | January – February | January – December |
Companion planting
8 beneficial pairings indexed for this variety, 3 to avoid.
Avoid
Nutrition (per 100 g)
- Protein (g)
- 0.742
- Fat (g)
- 0.0738
- Carbohydrate (g)
- 3.37
- Vitamin K (µg)
- 20.5
- Vitamin B6 (mg)
- 0.0401
- Calcium (mg)
- 14.2
- Iron (mg)
- 0.0332
- Magnesium (mg)
- 6.31
- Phosphorus (mg)
- 19.2
- Potassium (mg)
- 139
- Zinc (mg)
- 0.173
Where to buy seed and equipment
Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.
Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.
Grown Red Splendor?
Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.
Similar varieties
Other lettuce with a comparable time to harvest, so a season that suits Red Splendor suits these too.
- Wasabina 21 days
- Carlton 21 days
- Rosie 21 days
- Scarlet Frills 21 days
- Ruby Streaks 21 days
- Green Giant 21 days