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Strawberry begonia

Saxifraga stolonifera · Saxifragaceae

Strawberry begonia (Saxifraga stolonifera) in flower
Photo: Alpsdake, via Wikimedia Commons (CC BY-SA 4.0)

Round, scalloped leaves veined with silver and red beneath, with airy sprays of small white flowers in late spring. It spreads by thread-like runners, like a strawberry.

Size
8 in tall, 18 in wide
Zones
6 to 9
Light
Part shade to shade
Flowers
Mid May to late June
Pets
No toxicity recorded
Job in a bed
Carpet

A bed built around strawberry begonia

The planner designed this bed around strawberry begonia when this page was made: a 12 × 6 ft (3.7 × 1.8 m) English border in zone 6, part shade. It chose the other plants from the 513 that suit those conditions, and says below why strawberry begonia stands where it does.

A 12 × 6 ft (3.7 × 1.8 m) bed at eye level in early June: Strawberry begonia, Lungwort 'Raspberry Splash', Astilbe 'Purple Candles', Tall astilbe 'Superba', Pieris 'Little Heath', Siberian bugloss 'Jack Frost', Hardy cyclamen, Yellow trout lily.
A 12 × 6 ft (3.7 × 1.8 m) English border in zone 6, part shade, seen from the path in early June.
4. Tall astilbe 'Superba'44. Tall astilbe 'Superba'44. Tall astilbe 'Superba'43. Astilbe 'Purple Candles'33. Astilbe 'Purple Candles'33. Astilbe 'Purple Candles'35. Pieris 'Little Heath'51. Strawberry begonia11. Strawberry begonia11. Strawberry begonia12. Lungwort 'Raspberry Splash'22. Lungwort 'Raspberry Splash'22. Lungwort 'Raspberry Splash'21. Strawberry begonia11. Strawberry begonia11. Strawberry begonia11. Strawberry begonia14. Tall astilbe 'Superba'46. Siberian bugloss 'Jack Frost'66. Siberian bugloss 'Jack Frost'66. Siberian bugloss 'Jack Frost'61. Strawberry begonia11. Strawberry begonia11. Strawberry begonia11. Strawberry begonia11. Strawberry begonia11. Strawberry begonia17. Hardy cyclamen7. Hardy cyclamen7. Hardy cyclamen7. Hardy cyclamen7. Hardy cyclamen7. Hardy cyclamen7. Hardy cyclamen7. Hardy cyclamen8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily8. Yellow trout lily
From above, to scale. Each circle is one plant, as wide as the room it needs.

The plants

  1. 2 Lungwort 'Raspberry Splash' × 3, pink
  2. 3 Astilbe 'Purple Candles' × 3, purple
  3. 4 Tall astilbe 'Superba' × 4, purple
  4. 5 Pieris 'Little Heath' × 1, variegated leaves
  5. 6 Siberian bugloss 'Jack Frost' × 3, blue
  6. 7 Hardy cyclamen × 8, pink
  7. 8 Yellow trout lily × 12, yellow

Why this plant

  • The only white. White sits between stronger colours and calms them.

Why here

  • On the front edge. At 8 in it frames the bed without hiding it, and it is in leaf all season. It finishes 62% of the edge.
  • 13 plants in 4 runs (4, 3, 3 and 3). Runs of different lengths make the edge a frame, not a ruled line.

Why now

  • In flower for six weeks. From mid May to late June.
  • Fills a gap. For three of those weeks nothing else on the plan is in flower.
  • One of two evergreens. They are what the bed has to show from November to March.

Planned as an English border: 7 of the 7 groups (100%) are drifts, longer along the bed than they are deep. Siberian bugloss 'Jack Frost' and lungwort 'Raspberry Splash', recognised partners, are side by side. The back corners are held by astilbe 'Purple Candles' and tall astilbe 'Superba', the tallest plants on the plan.

The planner's own design check: 12 Excellent, 4 Good, 1 Satisfactory.

Open this bed in the planner Change its size, the sun or the style, move plants about, or swap one for another.

Where strawberry begonia goes in a border

At 8 in it belongs at the front of a bed. In the planner's ten height classes it is low (6 to 12 in).

Its job: carpet. A groundcover planted in threes and fives to cover the soil: along the front, and just behind it.

Neither a strawberry nor a begonia. The silver-veined leaves make a detailed, pretty carpet for a small shady space, and the runners are easy to control.

  • Evergreen groundcover for moist shade
  • Under shrubs in mild climates
  • Hanging baskets

What to plant with strawberry begonia

Plants recorded as good partners for it, and what each pairing does:

  • Hosta: its green leaves are a setting for the flowers, before and after; bold leaves against its medium ones; spires rising out of its mound.
  • Autumn fern: its dark green leaves are a setting for the flowers, before and after; tall enough (22 in) to stand behind it; happy in the same moist soil.
  • Mondo grass: its dark green leaves are a setting for the flowers, before and after; spires rising out of its mound.

Questions about strawberry begonia

Does strawberry begonia need sun or shade?

Strawberry begonia grows in part shade (2 to 4 hours of sun, mostly in the morning) and shade (less than 2 hours of direct sun, or bright dappled light).

It wants soil that stays evenly moist, rich in organic matter, and a good soak in dry spells. Once settled in, it stands drought.

What zones does strawberry begonia grow in?

USDA zones 6 to 9. It is hardy to zone 6, which means it survives winter nights down to about 0 °F (−18 °C).

Gardening in Canada? Use the USDA zone for your town: Canada's own zone map uses different numbers.

When does strawberry begonia flower in my zone?

In zone 5 it flowers mid May to late June. As a spring flower it moves about a week for every zone: earlier where it is warmer, later where it is colder.

Roughly when strawberry begonia is in flower
Zone 6Early May to late June
Zone 7Early May to mid June
Zone 8Late April to mid June
Zone 9Mid April to early June

Worked out from Hopkins' bioclimatic law: spring arrives about four days later for each degree of latitude north, and one zone is roughly two degrees. A warm spring or a cold one moves any garden two weeks either way.

How far apart should strawberry begonia be planted?

12 in (30 cm) apart, from the middle of one plant to the middle of the next. That is a little closer than its full width of 18 in (45 cm), so a group knits into one patch.

It grows 8 in (20 cm) tall. Give it the full distance from anything taller, or it will lean out towards the light.

How many strawberry begonia plants do I need?

At 12 in apart, set out in staggered rows:

  • 12 to fill 10 square feet (about 1 m²)
  • 11 for a single row 10 ft (3 m) long
  • 38 to fill a 4 × 8 ft bed on its own

In a mixed border, plant it as threes and fives, along the front and just behind it.

In the bed above, the planner used 13 in four groups.

Is strawberry begonia poisonous to dogs and cats?

No toxicity is recorded for dogs, cats, horses or people, according to NC State Extension.

"Not toxic" is not "edible": a pet that eats a lot of any plant can be sick.

Is there a native plant like strawberry begonia?

Strawberry begonia comes from Central and Southern China, South Korea, Japan and Taiwan. These North American natives come closest to doing its job:

  • Woodland strawberry: the same job in a bed, the same size and the same colour; flowers early May to late August, not evergreen.
  • Creeping phlox 'Sherwood Purple': the same job in a bed and the same size; flowers early May to late May, purple, not white.
  • Green-and-gold: the same job in a bed and the same size; flowers late April to mid June, yellow, not white.

Matched the way the planner's Swap button matches plants: the same job in a bed, then size, then flowering time.

Do deer eat strawberry begonia?

They may. NC State does not list it as resistant to deer or rabbits. Where they visit, protect it, or plant it among ones they avoid.

Will strawberry begonia spread?

It spreads sideways, by runners or roots; the risk of it taking over is moderate. Spreads steadily by creeping stems. It is easy to pull out, but needs a firm edge.

What flowers after strawberry begonia?

Strawberry begonia is over by late June. These start as it finishes and carry the same spot on, so it never goes flat:

  • Astilbe: from late June to mid July, 24 in tall.
  • Bigleaf hydrangea: from late June to late August, 5 ft tall.
  • Wintergreen: from late June to late July, 5 in tall, to stand in front of it and cover its fading stems.

What does strawberry begonia look like in winter?

Strawberry begonia keeps its variegated leaves all winter, so it is one of the plants that hold a bed together from November to March, when the perennials have gone.

More Saxifraga

In these guides

Zone guides: Zone 6 · Zone 7 · Zone 8 · Zone 9

In flower in: May · June

Every fact on record

Type
Perennial (groundcover)
Size
8 in (20 cm) tall, 18 in (45 cm) wide
Plant
12 in (30 cm) apart
Height class
Low (6 to 12 in)
Place in the bed
Front
Flowers
Mid May to late June; airy sprays; white
Leaves
Medium texture, evergreen; variegated
Shape
Mat-forming, spreading
Hardy in
USDA zones 6 to 9
Light
Part shade, shade
Soil
Rich, evenly moist
Water
Moderate
Feeding
Light, in spring
Family
Saxifragaceae
Comes from
Central and Southern China, South Korea, Japan and Taiwan
Stands up to
Drought

Checked against NC State Extension. Flowering times are for zone 5: later in colder zones, earlier in warmer ones. Toxicity and spread information is a general gardening guide, not veterinary or medical advice, and invasive status varies by region. If a person or pet eats a plant, contact poison control or a vet. Check your local invasive species list before planting anything with a spread warning.