TYPICAL SPACING60 cm
HERB · PERENNIAL
Rosemary Growing Guide
Plan rosemary as a perennial herb with attention to drainage, mature size, containers and long-term care records.
PLANT PROFILE
Track in My Garden →Rosemary
Woody Mediterranean herb that prefers drainage and dislikes prolonged waterlogging.
LIFECYCLEPerennial
Give rosemary the right place before you calculate dates.
Rosemary is a woody perennial, not an annual herb that needs to be resown every spring. Long-term drainage and winter conditions matter more than fast early growth.
Use a sunny, free-draining position. In heavy wet soil, a raised position or container can be easier to manage. Allow enough space for the shrub to become woody and broad rather than judging spacing from a small nursery plant.
Plan the start around the way this plant actually grows.
Most home gardens establish rosemary from a young plant or cutting. Record the cultivar if known because growth habit and cold tolerance can differ. Treat the first season as establishment rather than a race to harvest heavily.
Avoid prolonged waterlogging, especially in cool conditions. Light trimming after growth can help maintain shape, but hard cutting into old bare wood is not equivalent to pinching a soft annual herb.
Use maturity as a window, then check the real plant.
Take small shoots as needed and leave enough active foliage for continued growth. The plant can provide useful harvests for years when site conditions suit it.
Add rosemary to the perennial register in My Garden, then use area and watering tools to plan a container or herb-bed position.
How should I use the numbers on this page?
Spacing: 60 cm is the current broad planning default. Do not tighten spacing simply to increase the plant count.
Maturity: This perennial or long-lived plant is not reduced to one generic maturity countdown. Weather and cultivar can materially change the real timing.
Local conditions: Frost pockets, wind exposure, soil drainage and container size can make two gardens in the same town behave differently.