The flowers have a five-toothed calyx and semi-cylindrical corolla with five white petals dotted with black.
To multiply the Sesame we have to bury some seeds, possibly in late spring, around the beginning of May, when the night temperature starts to stay around 10°C.
The germination of the seeds is quite fast: it is necessary to use peat mixed with sand or, in any case, to have a very loose and draining substratum. The suitable temperature for germination is around 29°/33°C.
The seeds of the plant are harvested during the summer period when the leaves turn yellow and before the capsules open, they are then dried or toasted. The seeds are rich in oil, in fact, from these is obtained the sesame oil, much utilized by the coeliacs.
It is a short-diurnal plant which needs high and constant temperatures; it does not have particular requirements for what the soil is concerned, even if it prefers those with neutral reaction, but it can adapt, without any problems, also to the sub-acids with pH up to 5,5 and to the sub-alkaline ones with pH 8.
As mentioned before, the Sesame requires high temperatures throughout the cycle, those suitable for fertilization are between 29 ° and 33 ° C, while the optimal temperature for growth until fruiting is between 27 ° and 33 ° C. Cold can be lethal for the plant, especially during its maturation.
Harvested maintenance sesame seeds
This plant is quite resistant to periods of drought, you should not exaggerate with watering that should be regular but never excessive. It is recommended, during the vegetative period, to provide the plant with specific fertilizer for flowering plants to dissolve in the water of watering. If the Sesame is placed in a sunny place, it will develop more quickly, will be luxuriant and will not need any support. Beware of stagnation that will cause the leaves to turn yellow.
Sesame is subject to attacks by fungal diseases and aphids, although the greatest damage is caused by some fungal infections. To counteract these problems, specific products can be used to administer to the plant.