Phlomis tuberosa ' Bronze Flamingo' / Jerusalem Sage / Seeds

(Code: JEL_037)
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Phlomis tuberosa ' Bronze Flamingo' / Jerusalem Sage / Seeds

Phlomis is a decorative upright plant with tall spikes of dark purple stems with whorls of lilac flowers in June and July.  These are great border plants, growing well in the middle to back of a border in groups.  They are well suited to dry or Mediterranean gardens.  Plants grow to a height of about 100cm when in flower and are loved by bees.  These are good cut and dried flowers. 

Jerusalem Sage grows best in full sun and well drained soil.  The plants die back in winter, but the dried material looks great in the frost, and can be cleared away in spring when the plants start to re-grow.  They are drought tolerant once established and also grow well in coastal gardens.


Pack of 30 seeds.  Sow the seeds over winter into early spring in an unheated greenhouse or coldframe, and seeds germinate irregularly over several months.  Or sow indoors in spring.  Germination is erratic, so sow more than you need.  Sowing instructions and a colour photo are printed on the packet.

See how your seeds are packed.

Hardiness Hardy herbaceous perennial (RHS Hardiness H5)
Flowers June and July
Height About 100cm
Spread 30 - 60cm
Conditions  Sun and well drained soil, avoiding waterlogged soils in winter
Sow Sow the seeds in winter into a tray of compost.  Cover the seeds lightly with compost and leave in an unheated greenhouse or coldframe with a clear cover.  Keep the seed tray moist and seeds germinate when the weather warms up.  Germination is irregular and takes several months, so be patient and sow more than you need.   Transfer seedlings to small pots when they are big enough to handle and then out into the garden.  Or sow the seeds indoors in spring, keep at around 20 degrees Celsius and germination takes 2-6 weeks.  If there is no germination, move the tray into a fridge for 2-4 weeks and back into the warmth.
Grow Flowering starts in the second season.  Cut back the plants after flowering in the autumn when they die back.  Or leave the dead material on the plant over winter, as it is attractive covered in frost, and remove in spring.  Plants start growing again in spring.  Mature plants can be divided in spring.