SproutSmart
SproutSmart Intelligent Garden Sowing

Blue Solaise

Family: Amaryllidaceae Vegetable

Planting Schedule

Add Blue Solaise to your garden to build a schedule and get reminders.

Cool and captivating, Blue Solaise leeks bring a silken, ocean-deep flavor with a gentle sweetness that lingers—each stalk is tender and richly textured, with a firm, crisp bite.

At maturity, the long, upright shafts form a clean, well-blanched look that’s ideal for roasting, simmering, and velvety sauces, as well as pickling for a bright, briny accent. Grow 110 days for a steady harvest of elegant, blue-green stems that turn the garden into a palette of slate and steel.

Light: Full SunMaturity: 110 DaysHabit: Upright

Botanical illustration of Blue Solaise

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

Crop Dates

MilestoneDate
Start IndoorsFeb 14th
Last FrostApr 25th
Transplant / Sow OutdoorsApr 18th
Harvest BeginsAug 6th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity110
Sun RequirementsFull SunFull sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)45
Min Night Temp (°F)28
Harden Off (days)7

Culinary Notes


Chef's Note

Blue Solaise leeks are built for heat—their sweeter, silken allium core turns luxuriously soft while still showing a crisp, not-starchy chew. When you roast or reduce them, you get that slate-smooth, ocean-bright flavor that loves butter, wine, and smoky proteins.

Best Uses

  • slow-simmered leek soup or velouté until silky
  • roasted leek wedges that bronze at the edges without turning stringy
  • braises where leeks become sweet, briny-tender throughout
  • quick pickling for a sharp, salty snap

Flavor Profile

silken, ocean-deep allium flavor gentle sweetness with a lingering savory finish tender shafts that keep a firm-crisp bite sweet-leaning aromatics that mellow with heat

Kitchen Pairings

butter cream or creme fraîche white wine thyme potatoes smoked salmon

Frequently Asked Questions


How do I prevent and treat powdery mildew on Blue Solaise plants?
Blue Solaise (tomato) is prone to powdery mildew, especially when nights are cool and days stay humid. At the first white, dusty spots on leaves, remove heavily affected leaves, improve airflow (space plants well and avoid crowding), and spray a labeled potassium bicarbonate or sulfur product in the evening per package directions. If spread continues, switch to a systemic fungicide labeled for powdery mildew and stop overhead watering so foliage stays drier.
How often should I water Blue Solaise during the main growing phase?
From flowering through fruit set, water deeply about 1–2 times per week, aiming for consistently moist (not soggy) soil around the root zone. Water when the top 1 inch of soil feels dry; if you can press the soil and it crumbles, it’s time to water, and if it feels wet/compact, wait. Keep watering steady—irregular watering is a common trigger for cracking and blossom-end rot in tomatoes.
When is Blue Solaise ready to harvest?
Harvest Blue Solaise when fruit has full color and is slightly soft at the blossom end, typically around 110 days from sowing depending on transplant timing. For the best flavor, pick after the skin is uniformly dark (not green) and the fruit gives a gentle squeeze without feeling hard. Avoid leaving fruit to overripen on the vine, as late-season softness and splitting increase as temperatures fluctuate.