SproutSmart
SproutSmart Intelligent Garden Sowing

Astro Baby

Family: Brassicaceae Leafy Green

Planting Schedule

Add Astro Baby to your garden to build a schedule and get reminders.

Tender, peppery leaves arrive with a bright, crisp snap—Astro Baby arugula is a quick-growing delight that tastes lively and fresh from the first harvest.

The foliage forms a compact rosette of finely textured, deep green leaves with a delicate, slightly ruffled edge and a smooth, juicy bite. Ideal for salads and garnishes, it also shines when tossed into warm dishes and stirred into sauces for a bold, distinctive bite.

Light: Part SunMaturity: 40 DaysHabit: Rosette

Botanical illustration of Astro Baby

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 25th
Transplant / Sow OutdoorsApr 18th
Harvest BeginsMay 28th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity40
Sun RequirementsPart SunPartial sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)32
Harden Off (days)5

Culinary Notes


Chef's Note

Astro Baby arugula hits with a clean pepper snap and juicy tenderness—great when you want flavor without tough bitterness. Use it at the end (or off-heat) so it wilts only slightly and keeps that crisp, fresh bite.

Best Uses

  • toss with lemon vinaigrette and shaved Parmigiano for a fast, sharp salad
  • fold into warm pasta off-heat so it wilts just enough to stay snappy
  • sprinkle as a last-second garnish on pizzas or flatbreads for heat-resistant pepper flavor
  • stir into yogurt or tahini sauces to turn up the herbal, peppery edge

Flavor Profile

peppery bite bright, citrusy freshness tender, finely textured leaves juicy crisp snap with a slightly ruffled mouthfeel

Kitchen Pairings

lemon Parmigiano-Reggiano olive oil garlic balsamic vinegar chickpeas

Frequently Asked Questions


Astro Baby (about 40 days) — why are my leaves turning yellow with white powder, and how do I fix it?
This is most often powdery mildew, which shows as a white/gray powder on leaf surfaces and causes yellowing. Cut off the worst affected leaves, improve airflow between plants, and water at the soil line so foliage stays dry. Spray with a labeled potassium bicarbonate or sulfur product early in the problem and repeat as directed on the label (avoid sulfur when temperatures are very hot or during drought stress).
How often should I water Astro Baby during the main growing phase so the roots/heads develop well?
Keep the planting bed evenly moist but not soggy from germination through the final 2 weeks before harvest—about 1 inch of water per week total, split into 2–3 waterings. Let the top 1/2 inch of soil dry slightly between waterings; if you see standing water or the soil stays wet for days, cut back. In part-sun spots or warm weeks, check moisture more often because Astro Baby can dry out faster at the surface.
How can I tell when Astro Baby is ready to harvest at ~40 days?
Harvest when the plants reach full size and the tops look firm and properly colored, typically around 40 days after sowing/transplanting. Avoid leaving them too long—if you see slowing growth or foliage starting to flag, harvest sooner for best texture and flavor. Use a gentle tug or quick check at the soil line to confirm the edible portion is firm and filled out, not hollow or soft.