Portulaca grandiflora Sundial Series

RHS Plant Profile

rose moss Sundial Series

Copyrighted 2003

Annual Biennial Bedding

Sundial Series are spreading annuals to 20cm in height, with fleshy, cylindrical leaves and semi-double flowers to 5cm across, in shades of red, purple, pink, yellow and white

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 1–2 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: West–facing or South–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H2
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Portulacaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Spreading branched
Genus: Portulaca are slightly succulent annuals with fleshy leaves and cup-shaped flowers in shades of red, purple, pink, yellow and white
Name Status: Accepted

How to Grow

Cultivation

Ideal for dry, sunny positions such as gravel gardens, rock gardens, sunny slopes, also makes a drought-tolerant container plant

Propagation

Propagate by seed

Suggested planting locations and garden types

City and courtyard gardens
Patio and container plants
Cottage and informal garden
Flower borders and beds
Garden edging

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free