Rainbow Mix

Chard

Zone 10b Save Garden

🌱 50d to harvest Rosette

Tender, jewel-toned leaves unfurl in as little as 50 days, with crisp ribs that glow in a true rainbow—creamy white, golden, rosy…

Crop Dates

Milestone	Date
Start Indoors	Dec 4th
Last Frost	Jan 1st
Transplant / Sow Outdoors	Dec 25th
Harvest Begins	Feb 13th
Harvest Ends	Dec 31st

Crop Details

Trait	Value
Days to Maturity	50
Sun Requirements	Full Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	40
Min Night Temp (°F)	30
Harden Off (days)	6

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Frequently Asked Questions

What disease or pest is most likely on Swiss chard (Beta vulgaris var. cicla), and how can I control it?

Watch for leaf miner and aphids, which commonly show up as tunnels in chard leaves and curled, sticky growth. Remove badly infested leaves early, then spray the undersides with insecticidal soap and repeat every 5–7 days until activity drops. If you see leaf spots or powdery mildew during humid weather, water at the soil line and improve airflow by thinning plants to avoid crowded foliage.

How often should I water Swiss chard during the main growing phase?

During the 40–50 day leaf growth period, keep the soil consistently evenly moist, aiming for about 1 inch (2.5 cm) of water per week total from rain and irrigation. Water deeply when the top 1 inch of soil dries, because chard in dry spells quickly turns bitter and stressed plants are more susceptible to pests. Avoid soggy soil; chard prefers moisture without waterlogging.

How do I tell when my Swiss chard is ready to harvest?

Begin harvesting around 45–50 days after sowing when outer leaves reach about 8–12 inches long and are thick enough to hold upright. Pick individual outer leaves first (near the base of the leaf stalk) and leave the center crown intact for continued regrowth. For best flavor, harvest before leaves become very large and tough.

Tender, jewel-toned leaves unfurl in as little as 50 days, with crisp ribs that glow in a true rainbow—creamy white, golden, rosy pink, and deep emerald green. The texture is pleasantly snappy and smooth, with a gentle, earthy sweetness that holds its character beautifully in fresh salads and quick sauté-style skillet favorites, as well as silky sauces and vibrant pickles. Grow Rainbow Mix for a garden that looks like stained glass and a harvest that stays colorful from first cutting to the next.

Sowing Tips

Transplant Conditions

Wait until soil reaches 40°F and nights stay above 30°F before moving outdoors. Harden off for 6 days first.

Expert Note

For best color and tenderness, keep soil evenly moist and harvest outer leaves regularly to encourage continuous growth.