How to grow amazing vine mandevilla from seed

Mandevilla Care Tips
As far as care goes for these plants mandevillas are low maintenance.
Light
Mandevilla needs 6 to 8 hours of full sun for best flower production. In the hottest regions it benefits from some shade during the afternoon.
Soil and Water
When planting outside select a site with good drainage and rich soil. Amend the planting area with compost or other organic matter to support the blooms. Water regularly to keep the soil moist but not overly wet.
Temperature and Humidity
The preferred temperature range for mandevilla that grows outside is 6890F. Anything lower than 50F is likely to damage the plant. If the plant is overwintering indoors keep the temperature in the 6065F range at night and 70F or warmer in daytime.
Fertilizer
Like most vigorous plants that bloom for long periods mandevilla benefits from a good dose of fertilizer every once in a while.
Pruning
If the plants get a little too wild for your liking mandevilla can be pruned or trained to keep it in bounds. Plus this will encourage more branching and blooms.
Potting and Repotting
When potting a mandevilla use a lightweight welldraining potting mix. Trim any dead or damaged roots and position the plant at the same depth as in its previous container. Repot mandevilla every year or two in the spring in a pot only one size larger than the current container.
Pests and Problems
Mandevilla has no major pest problems but it can attract mealybugs aphids and scale insects. The plant is usually ignored by deer and rabbits.
How to Propagate Mandevilla
You can propagate mandevilla from cuttings or seeds. In the spring take 3inch cuttings from the plant tip or side shoots and remove all but the top two leaves. Dip
in rooting hormone and plant in a welldraining potting mix. When starting from seeds use fresh seeds. Wait until they dry on the plant then harvest the seeds soak them in water overnight and plant them in welldraining soil.