Plants
Scarlet Sage
Salvia splendens · Lamiaceae
Scarlet sage is the classic among red bedding plants: upright flower spikes in a scarlet that glows from afar, above rich green foliage and a compact habit. Unlike its relative, culinary sage, it is purely ornamental — but in return it flowers from planting until frost. If you want impact in a bed or box, this delivers it guaranteed.
- Light
- Sunny to partially shaded — more adaptable than many other summer flowers.
- Watering
- Regular and even, without waterlogging.
- Care level
- Easy
- Botanical
- Salvia splendens
Important for context: Salvia splendens is not the sage from the kitchen. Culinary sage (Salvia officinalis) comes from the Mediterranean and is hardy; scarlet sage comes from Brazil, is frost-tender and is grown here as an annual bedding and balcony plant.
The glowing red comes twice over: both the tubular flowers and the long-lasting calyces are coloured. That is why scarlet sage looks colourful even between flushes — a trick municipal gardeners have exploited in park borders for generations.
Alongside the classic scarlet there are now varieties in salmon, violet, cream and bicolours, for instance from the Vista, Salsa or Reddy series. The dark violet varieties look far more contemporary and combine more subtly than the signal red.
In the bed, scarlet sage is a foreground and midground player of 20 to 40 centimetres. The strong red sits best with calm partners: white begonias, silvery dusty miller or plain green. Combined with more loud colours the planting quickly tips into restlessness — the most common design mistake with this plant.
In cultivation it is uncomplicated: sun to partial shade, evenly moist and fed regularly. Cut spent spikes back to the next leaf pair and the side shoots push up immediately. Under drought stress it lets its leaves droop but usually recovers fully after watering.
The flower tubes are within easy reach for bumblebees, while honeybees struggle with their length. To actively support insects, combine scarlet sage with open-flowered partners — as a colour-giver it remains unbeatable regardless.
Is Scarlet Sage toxic to children and pets?
- Children
- Non-toxic
- Cats
- Non-toxic
- Dogs
- Non-toxic
Scarlet sage is considered non-toxic to cats, dogs and children — contrary to what its reputation sometimes suggests. It is still not meant for eating; only culinary sage serves as a herb.
Overview: toxic & non-toxic plants for cats, dogs and children
Care
- 01Plant in sun to partial shade; full sun gives the densest flowering.
- 02Keep evenly moist; the plant signals short drought stress with drooping leaves.
- 03Feed every one to two weeks, weekly in boxes.
- 04Cut spent flower spikes back to the next leaf pair — this keeps the bloom going.
- 05Plant out only after the last late frosts in mid-May, scarlet sage tolerates no frost.
- 06Keep 25–30 centimetres between plants in beds so they stay bushy.
Frequently asked
- Is scarlet sage edible like culinary sage?
- No. Scarlet sage is a purely ornamental plant from Brazil and shares only the genus with Mediterranean culinary sage. It is not poisonous, but neither aromatic nor suitable as a kitchen herb.
- Is scarlet sage toxic to cats or dogs?
- No, Salvia splendens is considered non-toxic to cats and dogs and is harmless to children too. It can safely grow in low beds and boxes that pets pass by.
- How does scarlet sage stay in bloom all summer?
- Three things decide it: regularly cutting out spent spikes, an even water supply and feeding every one to two weeks. Leave the finished spikes standing and the plant puts its energy into seed instead of new flowers.
- Does scarlet sage tolerate partial shade?
- Yes, better than most summer flowers — it comes from open mountain forests. In partial shade it flowers a little more loosely but stays reliably in colour. Only deep shade leads to long shoots and sparse bloom.