Astro

Arugula

40d to harvest

Astro arugula arrives with a vivid, peppery snap—tender leaves that feel silken at first touch, then bloom into a bright, piquant bite. At about 40 days, it forms an upright, leafy rosette of finely textured foliage that stays pleasantly crisp for salads and quick garnishes, and shines when wilted into savory sauces or tossed with warm grains. A standout for gardeners who want bold flavor without sacrificing tenderness.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Jun 1st
Transplant / Sow Outdoors	Jun 1st
Harvest Begins	Jul 11th
Harvest Ends	Aug 1st

Crop Details

Trait	Value
Days to Maturity	40
Sun Requirements	Full Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	70
Min Soil Temp (°F)	40
Min Night Temp (°F)	30
Harden Off (days)	Not Required

Frequently Asked Questions

What should I do if my Astro (ready-in-40-days) plants develop downy mildew or leaf spotting?

Astro brassicas (grown for leaves) commonly show downy mildew/leaf spotting when foliage stays wet—look for gray-purple patches under leaves or dark spots with yellow edges. Remove and discard the worst leaves, then water at the soil line (not overhead) and improve airflow by spacing plants a bit tighter where possible. If new growth keeps showing lesions, apply a copper-based fungicide according to the label and re-apply after rain/dew cycles as directed.

How often should I water Astro during the main growing phase to keep it growing fast to day 40?

During active growth (about weeks 2–6), keep the top 1–2 inches of soil consistently moist but not soggy—aim for about 1 inch of water per week total, split into 2–3 waterings during hot or windy weather. Check by feel: if the soil at 1 inch depth is dry, water deeply until it penetrates that level. Avoid letting it swing between dry and drenched, which can cause poor leaf development.

How can I tell when Astro is ready to harvest at around 40 days?

Harvest when plants reach full size but before they look stressed—leaves should be tender, not tough or overly thick. For a tight harvest window, start picking outer leaves when they are the expected mature size and the center is still forming, usually around day 38–40. If you see bolting (a flower stalk starting), harvest immediately because leaf quality declines quickly.