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Rosmarinus officinalis Tuscan Blue

Upright habit and strong blue flowers

A dense growing form of Rosemary that has a long flowering season. Deep green needle-like leaves crowd on the upright stems and from late spring until autumn, these are studded with deep blue flowers that are very attractive to bees and butterflies. Vigorous and suited to the middle of a border or container.


Happiest in full sun and well drained soil, a good choice for seaside gardens or a large container.


Choose a sunny site sheltered from cold winter winds. Prune lightly after flowering to encourage new growth the following year.

Plant details

In depth plant information

Property Value
Plant type Herb, Ornamental shrub
Flower colour
Foliage colour
Typically available March - September
Season of interest Summer
Flowering May - June
Evergreen Yes
Plant height 115 cm - 150 cm
Plant width 125 cm - 150 cm
Fragrant flowers No
Attracts bees Yes
Attracts butterflies Yes
Plant height in 5 years 90 cm
Hardiness zone (?) H4

Will perform best in these conditions

Property Value
Soil type Loam, Chalk, Sand
Light exposure Full sun
Soil drainage Well drained, Medium
Planting instructions

Water the plant in its pot thoroughly before planting – give it a good soaking. Prepare the area by digging a hole twice the size of the pot. Dig compost into the base of the hole. Position the stake in the hole, on the side of the prevailing wind and drive it into the soil, to a depth of 60cm. The stake should be a third of the height of the tree, when planted. Remove the pot and position the plant in the hole close to the stake, with the rootball about level with the surrounding soil. Refill the planting hole with a mixture of garden soil and compost, firming as you go. Use two tree ties to secure the stem to the stake. Water in well and keep well watered during the plant's first year. Check ties regularly and adjust them as the tree grows.

Planting site Rock garden, Cottage garden, Informal garden, Coastal or drought resistant, City garden, Courtyard garden, Flower border and beds, Gravel garden

Additional Information for Fruit, Veg and Bulbs

Property Value
Sowing March - December

Typically available

From March to September