SproutSmart
SproutSmart™ Intelligent Garden Sowing

Amsterdam

Celery
Zone 11a Save Garden

Planting Schedule

Add Amsterdam to your garden to build a schedule and get reminders.
Botanical illustration of Amsterdam
85d to harvest

Crisp, cool stalks with a clean, bright celery snap—Amsterdam delivers a refined crunch that feels as fresh as a morning breeze. Expect tender, well-blanched stems with a smooth, stringless texture and a classic, gently savory celery flavor that shines in salads and slaws, as well as in hearty soups and stews. A dependable choice for home gardeners seeking uniform, market-ready stalks at about 85 days to maturity.

Crop Dates

Growing note: In frost-free Zone 11a, grow this cool-season crop during the cooler dry season (October–February).
MilestoneDate
Start Indoors—
ClimateFrost-Free Climate
Transplant / Sow OutdoorsOct 1st
Harvest BeginsDec 25th
Harvest EndsFeb 28th

Crop Details

TraitValue
Days to Maturity85
Sun RequirementsPart SunPartial sun
Growth HabitRosette
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)45
Min Night Temp (°F)35
Harden Off (days)6

Today's Conditions

Outdoor planting for Amsterdam in Zone 11a typically begins around 2026-10-01. Wait until soil reaches at least 45°F before transplanting Amsterdam.

Garden Alerts

In frost-free Zone 11a, grow this cool-season crop during the cooler dry season (October–February).

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Frequently Asked Questions

Why are my Amsterdam greens developing gray, fuzzy patches or damp-looking spots, and how do I stop it?
Gray mold (Botrytis) on Amsterdam plants is usually triggered by cool, humid weather and crowded growth that keeps leaves wet. Remove and discard infected leaves immediately, then thin plants so air moves through the canopy and water only at the soil line (not over the leaves). If it keeps spreading, use a label-approved fungicide for vegetables and apply according to the product directions, especially before more cloudy/humid spells.
How often should I water Amsterdam during the main growing phase, and what soil moisture level should I aim for?
During the main growth period (roughly weeks 3–8 after sprouting), keep the top 1 inch of soil consistently moist but not soggy. Water about 1–2 times per week depending on heat and container vs. ground conditions, adding more only if the soil dries faster than the 1-inch depth test. Aim for steady moisture because fluctuations can lead to weak, stunted growth in Amsterdam, especially under part-sun conditions where soil can dry unevenly.
Botanical illustration of Amsterdam

Crisp, cool stalks with a clean, bright celery snap—Amsterdam delivers a refined crunch that feels as fresh as a morning breeze. Expect tender, well-blanched stems with a smooth, stringless texture and a classic, gently savory celery flavor that shines in salads and slaws, as well as in hearty soups and stews. A dependable choice for home gardeners seeking uniform, market-ready stalks at about 85 days to maturity.

Today's Conditions

Outdoor planting for Amsterdam in Zone 11a typically begins around 2026-10-01. Wait until soil reaches at least 45°F before transplanting Amsterdam.

Garden Alerts

In frost-free Zone 11a, grow this cool-season crop during the cooler dry season (October–February).

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 45°F for reliable germination and early growth.

Expert Note

Start indoors early because celery is slow and fussy—transplant only when night temps are reliably above the minimum and keep soil consistently moist.