SproutSmart
SproutSmart Intelligent Garden Sowing

Hill Hardy

Rosemary

Planting Schedule

Add Hill Hardy to your garden to build a schedule and get reminders.
Botanical illustration of Hill Hardy
120d to harvest

Fragrant as a sunlit coastal breeze, Hill Hardy rosemary fills the garden with a resinous, piney aroma and a clean, savory flavor that lingers on the palate. Its narrow, deep green needles hold their character through the season, with a pleasantly firm, aromatic texture that shines when used fresh or dried. Grow Hill Hardy for bold, steady performance and a dependable herb that elevates everyday herb blends, infusions, and preservations with its unmistakable character.

Crop Dates

Growing note: Zone 3a has only 109 frost-free days — shorter than this crop's 120-day maturity. Outdoor planting is not viable; use protected cultivation.
MilestoneDate
Last FrostMay 15th
Growing ApproachProtected Environment Only

Crop Details

TraitValue
Days to Maturity120
Sun RequirementsFull SunFull sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)35
Harden Off (days)10

Frequently Asked Questions


How often should I water Salvia rosmarinus during its main growing phase?
During active growth (late spring through summer), water deeply only when the top 1–2 inches of soil are dry; in full sun, this is often about once every 7–14 days depending on heat and soil. Aim for even moisture without sogginess—rosemary prefers a dry-to-moist cycle rather than constantly wet soil. In containers, ensure excess water drains freely and never leave the pot standing in a saucer of water.
How do I know when Salvia rosmarinus is ready to harvest?
Harvest when plants are well established—typically after about 90–120 days from sowing—and when stems have enough usable length and the foliage feels fragrant when rubbed. Pick sprigs in the morning; for best regrowth, take no more than about one-third of the plant at a time and cut just above a leaf node. Continue harvesting through the growing season, but avoid heavy cuts late in the season so new growth can harden off.
Botanical illustration of Hill Hardy

Fragrant as a sunlit coastal breeze, Hill Hardy rosemary fills the garden with a resinous, piney aroma and a clean, savory flavor that lingers on the palate. Its narrow, deep green needles hold their character through the season, with a pleasantly firm, aromatic texture that shines when used fresh or dried. Grow Hill Hardy for bold, steady performance and a dependable herb that elevates everyday herb blends, infusions, and preservations with its unmistakable character.