Dietes robinsoniana growing herbaceous geophyte of the genus Dietes also known as Fortnight lily or African iris, Dietes robinsoniana perennial evergreen used as ornamental plant for the flowers, it’s drought tolerant plant and attract pollinators also can be used for cut flowers, can grow in tropics, mediterranean, desert, subtropics, temperate climate and growing in hardiness zone 8b+ and with the right overwinter care in hardiness zone 8a.

Leaves color green and narrow like sward shape leaves grow in groups linked together.

Dietes robinsoniana flower

Flowers color: white, the flower has 6 petals in the outer circle, 3 of the petals with yellow spots, 3 petals in the inner circle in the color yellowish.

Dietes robinsoniana for sale – Seeds or Plants to Buy

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How to grow Dietes robinsoniana growing and care:

Well drained soil, prefer rich soil with organic material, better to fertilize before the blooming season but not must, if there is organic material no need of fertilize, when the plant young (in case of seeds or late planting) better to protect it in the winter in hardiness zone 8-10a

How to care:
Fertilizer once a year, prune once a year, reduce old plants

What is the best way to start growing?
Plant / Seeds / Vegetative Reproduction

Is it necessary to use vegetative reproduction?
No, it’s easy to start from seeds

Propagation by daughter plants:
Dividing plants in the spring, water the soil before and try gently to take without the to cut the roots

Difficulties or problems when growing:
Aggressive

Planting season:
Spring in hardiness zone 8, spring to summer in hardiness zone 9-10a, spring to autumn in hardiness zone 10b-11, all year in hardiness zone 12+

How to plant:
Planting

Pests and diseases:
Leaf miner, spider mites

Pruning season:
All year, for reducing that amount of plant better to cut in the winter and better to pull the plant with the roots

How to prune:
Pruning dead leaves and dead bloom stems, better not to cut leaves and bloom stems until dry because it has effect on the blooming

Size of the plant:
0.5-1 m, 20-40 inches (1.5-3 feet)

Growth speed in optimal condition:
Medium growing

Water requirement:
Average amount of water / Small amount of water, possible to let it without water for a long period, but the plant prefer regular water especially in the blooming season but with good drainage

Light conditions in optimal condition for growing:
Full Sun, can grow in less than full sun but then it will have less flowers

Is it possible to grow indoor as houseplant?
No

Growing is also possible in a pot, planter, flowerpot or containers:
Yes, when growing in containers need to choose container that 50-100% bigger than the roots ball, minimum 10L (2.6 gallon) better bigger at least 20L (5.2 gallons) need pot will be wide and shallow the roots not too much deep, after few years drainage of the soil not function the same so need to change it to new soil, when keep the plants in small pot need to reduce the amount of plants that grow in the pot and also cut some of the roots when switch soil.

Blooming information

Bloom season:
Spring, summer, autumn

General information about the flower
White, the flower has 6 petals in the outer circle, 3 of the petals with yellow spots, 3 petals in the inner circle in the color yellowish

How to grow Dietes robinsoniana from seed

Sowing requirement:
Sunny location with good drainage, moist soil, 15-25C (59-77F), for not fresh seeds better to soak in water at least 12 hours

Saving seeds and care until sowing:
Dry and dark place, better to keep in in the refrigerate before

Sowing season:
Spring to summer in hardiness zone 8-11, possible all the year in hardiness zone 12+

Planting spacing:
20*30cm (8*12 inches)

Depth of Sowing:
0.5-1cm (0.25-0.5inches)

Conditions for seeds germinate:
Moist soil with light humidity

Watering requires for Seeds:
First week big amount of water after reduce to average amount of water, keep soil moist but not over water and don’t let it dry

Germination time:
2-8 weeks

Condition of seedling:
Full sun, regularly water, keep the soil moist

Scientific name:

Dietes robinsoniana

Alternative names: Lord Howe Wedding Lily, Fortnight lily, African iris

Categories

Blooming Seasons
  • Spring flowers
  • Summer flowers
Flower colors
  • White flower
Climate
  • Desert Climate
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
  • Tropics Climate
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
  • Fast growing plants
Plant life-form
  • Evergreen
  • Geophyte
  • Herbaceous
  • Perennial plant
Plant Uses
  • Drought tolerant plants
  • Floristry
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Summer planting
Plants sun exposure
  • Full sun Plants
Watering plants
  • Big amount of water
  • Regularly water
  • Small amounts of water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 12
  • Hardiness zone 13
  • Hardiness zone 8
  • Hardiness zone 9