Dipladenia is a climbing plant, a powerful vine with glossy foliage, growing rapidly when it benefits from good conditions. It is a plant native to South America, areas where it is hot all year round… And in our climates, in France, it is generally advisable to grow it in pots. Dipladenia is a frost-resistant plant, and to develop well it needs heat all year round. In the regions most favored by a mild climate, it will be possible to cultivate it in the open ground but exclusively in a very protected situation.
• Mandevilla spp.
- Cycle: Perennial plant
- Foliage: Evergreen
- Hardiness: Non-hardy plant (frost-resistant)
- Family: Apocynaceae – Apocynaceae
- Habit: Climbing plant
- Exposure: Sun
- Sowing: April under warm shelter
- Planting: April – May
- Flowering: June to October
- Rooting: root system
- Cultivation zone: in open ground 9b to 10 (see hardiness map ) – in pots everywhere.
- Origin: South America – Argentina
- Melliferous plant: no
- Plant very easy to grow
- Indoors, avoid exposure to the sun through a window. Dipladenia appreciates outdoor sun exposure, but could suffer behind glass.
What are the benefits of the garden?
• Superb and long flowering.
- Sun in the ground, dipladenia resists well to drought.
- Indoors: watch out for direct sunlight through a window.
What soil for dipladenia ?
- Plant it in any type of humus and drained soil.
- In a pot, mix geranium soil and sand
When to sow seeds?
• Sowing in spring under hot shelter , 20°C, in April.
How to sow dipladenia seeds:
- In a soil for geranium.
- Place a few seeds per cup.
- Cover with very little soil.
- Water well and keep the soil moist until emergence.
When to plant it ?
• Plant it in the spring, once the soil has warmed up: In May or June .
How to plant dipladenia:
Planting in the ground?
- Place the dipladenia.
- • Backfill with the mixture Work the soil to a spade height without turning it over
- Scrape the dipladenia root ball and immerse it in a bucket of water.
- Amend the soil with potting soil for geraniums and do not hesitate to add sand for drainage.
- Prepare the planting hole.
- of garden soil and potting soil.
Planting in a pot?
- In a large pot (40 cm)
- Fill it with a mixture of special geranium soil and sand.
- Place the dipladenia after having scraped the root ball.
- Tamp down and water well.
Division / Multiplication of Dipladenia:
• Multiplication by sowing (see above) or cuttings in early summer
How to take dipladenia cuttings:
- Select young shoots of 10 to 15 cm maximum.
- They should have two pairs of leaves and a bud.
- Cut the shoot just below the lower leaves and remove the 2 lower leaves.
- In a pot filled with a well-packed peat, planting compost and sand (40%/40%/20%) mixture.
- Position the shoots by pushing them down to the leaves.
- Water and cover the cuttings with a plastic bottle, the neck of which you will have cut out beforehand. You can also use a freezer bag to close around the jar with an elastic band.
- Place the cuttings in the light.
- Uncover the cuttings after 3 weeks.
- Watering: Dipladenia grows very well in the ground in drought conditions. In pots, on the other hand, care must be taken to keep the soil moist.
- Remove faded flowers to boost flowering.
- • Fertilization: especially for potted crops once a month.
Flowering of dipladenia:
- Superb summer flowering from June until October.
- Dipladénia Sanderi “Rosea” : Beautiful pink flowers with a yellow heart.
- Dipladenia “Sundaville Red” : Beautiful vermilion red flowers.
- Dipladénia “Alice du Pont” : Dense pink flowers with a yellow heart, or white flowers tinged with pale pink.
What to plant with dipladenia?
- Other summer flowering plants, in pots to decorate terraces.
- In the ground, why not mix several varieties of dipladenia?
Use of bluebell?
- In the garden: On a support, trellis, stake, fence…
- Without a garden: In a large pot to overwinter.