Kelvin
Kelvin: 80 days to harvest, 7-14 days to germinate, 6-8 inches between plants, hardy in zones 3-6. Give it full sun (6+ hours) and regular, consistent moisture; drought tolerant once established water. Because this is a hybrid, seed saved from it will not repeat the parent — plan on fresh seed each year.
Sowing
Start indoors 8-10 weeks before last frost, transplant after last frost date
Cultivation
- Sun
- Full sun (6+ hours)
- Water
- Regular, consistent moisture; drought tolerant once established
- Soil
- Well-drained, fertile loam; tolerates average fertility
- Spacing
- 6-8 inches
- Height
- 1-3 feet
- Season
- Warm season annual
Appearance & flavour
- Colour
- Dark green
- Shape
- Upright, uniform stalks
- Flavour
- Crisp, juicy, and tender with a classic mild celery flavor and clean taste.
In the kitchen
Fresh eating, salads, soups, stews, braising, snacking, cooking
Planting calendar by USDA zone
| Zone | Start indoors | Transplant | Direct sow | Harvest |
|---|---|---|---|---|
| 3 | April – May | June – July | — | July – October |
| 4 | March – April | June – July | — | July – October |
| 5 | March – April | May – June | — | June – October |
| 6 | March – April | May – June | — | June – November |
| 7 | February – March | April – June | — | June – November |
| 8 | February – March | April – May | — | May – December |
| 9 | January – February | March – April | — | April – December |
| 10 | January | February – April | — | April – December |
Companion planting
8 beneficial pairings indexed for this variety, 3 to avoid.
Avoid
Nutrition (per 100 g)
- Calories (per 100 g)
- 23
- Protein (g)
- 3.15
- Fat (g)
- 0.64
- Carbohydrate (g)
- 2.65
- Fibre (g)
- 1.6
- Sugars (g)
- 0.3
- Vitamin A (µg)
- 264
- Vitamin C (mg)
- 18
- Vitamin E (mg)
- 0.8
- Vitamin K (µg)
- 415
- Vitamin B6 (mg)
- 0.155
- Folate (µg)
- 68
- Calcium (mg)
- 177
- Iron (mg)
- 3.17
- Magnesium (mg)
- 64
- Phosphorus (mg)
- 56
- Potassium (mg)
- 295
- Zinc (mg)
- 0.81
- Selenium (µg)
- 0.3
Where to buy seed and equipment
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Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.
Grown Kelvin?
Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.
Similar varieties
Other herbs with a comparable time to harvest, so a season that suits Kelvin suits these too.
- Sweet Marjoram 80 days
- Britton 80 days
- Garden Sage 80 days
- Asia Ip 80 days
- Gourmet Gold Oregano 80 days
- Greek Oregano 80 days