RHS H5. A straggly plant with aromatic silvery foliage, slightly stick-like stems and almost-black flowers. A tender perennial that needs mollycoddling over winter. The crushed foliage smells of blackcurrant. The bicoloured flowers are sometimes completely purple, other times entirely white, creating a striking effect reminiscent of S. Raised by amateur plant breeder David Dyson. A shrubby, suckering plant found at the De Hessenhof nursery in the Netherlands. A floriferous plant, the flowers are a dark maroon-purple with a smoky sheen.
Recently developed in Argentina, the silky purple-red flowers and dark calyces were a breakthrough in Salvia guaranitica hybrids, which are usually a shade of blue. A fast-growing shrub with aromatic foliage and whorls of violet-blue flowers at the end of the summer.
Unlike most salvias, it prefers moist soil. Best grown in a pot and overwintered inside. A popular hybrid with long spikes of dark-blue flowers and grey-green foliage.
Often needs to be staked to prevent flopping over. Flowers all summer but at its best in autumn. A spectacular tender perennial with aromatic foliage and masses of royal-purple flowers that have almost-black calyces. It starts flowering at the end of June and will continue up until October. Its white flowers, the texture of velvet, become suffused with purple as they age and are held in dark-violet calyces. A midsummer-flowering herbaceous perennial that it is distinctly upright unlike the decumbent species.
The flowers are a deep blue, as opposed to the pale blue of the species, with long, narrow leaves. A new introduction from William that he selected for its densely packed flower spikes and long flowering period. The flowers are deep pink and appear from early June to October.
A massive plant with deep royal-blue flowers on flower spikes that can be 50cm long. This tough salvia can hold its own in the garden, even in quite heavy soil. Come spring it looks a little sad, but with a light prune to tidy it up and encourage new growth, it quietly recovers and goes on to produce a wonderful show through the summer well into autumn. The vivid, magenta flowers are small but numerous and carried on stiff twigs well above the scented foliage.
Height 1. Origin Mexico. Conditions Any rich soil that is not saturated; full sun. Hardiness RHS H4. Season Summer — autumn. The meadow clary is one of two salvia species native to the British Isles, with blue flowers. In recent years, seed companies have offered a range of colour forms from white and pink to blue and purple.
It has a rosette of foliage and rather lax flower stems with a form resembling an upside-down pyramid so its top is wider than its base. The violet-blue, flower spikes are large for this species and very attractive to bees. This cultivar is raised by cuttings. Blue salvia plants fill this bluesy niche perfectly because there are many wonderful selections of blue salvias for sale, and salvia plants tend to bloom for a long period of time As an added bonus, the fragrant foliage of salvia is distasteful to rabbits and deer.
With these blue salvias, you can catch the salvia blues in your garden for several months each year. Salvia azurea 'Nekan'. Salvia azurea is a great plains native plant with sky blue flowers.
Wild forms of this Salvia azurea tend to be floppy, but Salvia 'Little Boy Blue' is sturdier with upright 4' tall stems, in late summer, displaying dozens of pure azure blue flowers. The cultivar 'Nekan' , also features an improved upright habit and azure blue flowers.
Pinching a few times early in the year helps increase the branching and reduce the tendency to flop as does locating the plant in drier soil. Brushing against its fragrant foliage releases a typical sage-like scent. Some people like to grow Salvia azurea combined with perennial prairie grasses which will can give the salvias some support. Salvia x sylvestris 'Caradonna'. Raised on my nursery at Great Comp Garden in Sevenoaks, this bi-coloured hybrid has a compact habit and produces copious quantities of flowers from May to November.
The plant is drought tolerant and hardy in most areas, if given full sun and good drainage. It grows to 60cm in height. The garden is open daily from March — October. For more information, visit greatcompgarden. Watch Now! Results of the Nation's Favourite Gardens Competition Illuminated gardens to visit this Christmas.
Autumn tree colour: Why do leaves change colour? Autumn planting at Chelsea Flower Show. Plan on planting it back outdoors once the danger of frost has passed in mid to late spring. Or, if the pot is big enough, keep it as a potted plant through summer! Salvia are fairly easy to grow, thankfully! My salvia plug plants a very strong but all of the new leaves coming through are yellow. They are all strong butt the older leaves are dark green!
However, it also could be due to poor soil conditions. For example, it may be a lack of nitrogen the N in NPK , on a fertilizer package. You can add organic compost to the soil. They say these need to be watered regularly but mine are all dying back and turning black.
I must be doing something wrong. Seems they do better with little water during the summer. Thank you for the helpful info on caring for Salvias. My plants are attracting many pollinators including honey bees, bumble bees, butterflies, and humming birds.
Skip to main content. You are here Gardening » Growing Guides. By The Editors. When to Plant Salvia Plant salvia by seed outdoors after all danger of frost has passed in the spring. See local frost dates.
Choosing a Location All salvias thrive in full sun and well-drained soil. Many varieties typically those with light-colored flowers will also do well in part-shade, but flowering will be reduced. A south-facing location is ideal. Salvias look great when planted in groupings of three or more. Preparing a Planting Site Loosen the soil to a depth of 12 inches, removing any large stones or roots.
Mix in a 3-inch layer of compost to provide nutrients. If planting in a container, add some grit to the compost to improve drainage and feed in spring. How to Plant Salvia Dig a hole twice the diameter of the container the plant is in. Remove the plant from its container and place it in the hole so the top of the root ball is level with the soil surface. Space plants 1 to 3 feet apart, depending on the variety.
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