Mentor

Celery

Zone 10b Save Garden

🌱 95d to harvest Rosette

Aromatic and deeply savory, Mentor Celery rewards the patient gardener with crisp, cool-green stalks that hold their snap from ga…

Crop Dates

Milestone	Date
Start Indoors	Oct 23rd
Last Frost	Jan 1st
Transplant / Sow Outdoors	Dec 25th
Harvest Begins	Mar 30th
Harvest Ends	Dec 31st

Crop Details

Trait	Value
Days to Maturity	95
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	32
Harden Off (days)	6

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Frequently Asked Questions

Mentor (Apium graveolens var. dulce) — what pest or disease should I watch for, and how do I treat it?

Watch for celery leaf spot (fungal leaf spots) and aphids; both often show up after humid weather or crowded plants. Remove heavily spotted leaves promptly and improve airflow with wider spacing; if spots are spreading, use a labeled fungicide that includes celery/leaf-spot control. Rinse aphids off with a strong water spray and repeat every few days until controlled, or use an insecticidal soap per label directions.

How often should I water Mentor during the main growing phase (when leaves are filling out)?

Keep the soil consistently moist but not waterlogged from transplanting onward—target evenly damp soil down to the top few inches. In warm periods, this usually means watering about 1–2 times per week, but adjust to weather so the surface never dries out completely. Mulch lightly to stabilize moisture, and avoid letting water splash onto foliage for long stretches.

How can I tell when Mentor is ready to harvest?

Harvest when plants reach full size and about 95 days from sowing (or your listed maturity window), with firm, well-developed leaves and sturdy stems. Start by cutting outer leaves and let the inner growth continue, or harvest the whole plant once it looks dense and mature. If flavor turns bland or leaves become stringy, harvest promptly rather than waiting longer.

Aromatic and deeply savory, Mentor Celery rewards the patient gardener with crisp, cool-green stalks that hold their snap from garden to table. The flavor is clean and bright—less sharp than many, with a gentle sweetness that lingers—while the texture stays pleasantly firm, ideal for long, satisfying harvests. Grow Mentor for standout presence in fresh salads, elegant braises, and silky soups and sauces where its celery character shines.

Sowing Tips

Transplant Conditions

Wait until soil reaches 45°F and nights stay above 32°F before moving outdoors. Harden off for 6 days first.

Expert Note

Start celeriac early indoors and transplant only when nights are reliably above cool-safe levels; consistent moisture reduces fibrous roots and leaf-spot pressure.