Pennisetum clandestinum grow and care herbaceous of the genus Pennisetum also known as Fountain grass or Kikuyu grass, Pennisetum clandestinum perennial evergreen used as ornamental plant can grow in mediterranean, desert, subtropics or tropics climate and growing in hardiness zone 10+, and with the right care in hardiness zone 9b.
How to grow Pennisetum clandestinum growing and care:
Well-drained soil, prefer rich soil with organic material
How to care: Add organic matter and fertilize better to fertilize before the blooming season but not must, when the plant young (in case of seeds or late planting) better to protect it in the winter
What is the best way to start growing? Plant / Seeds / Vegetative Reproduction – daughter plant when the plant full grow better to separate after wet the soil in order to make it easier and to keep the roots as long as possible, in the beginning increase the amount of water for at least two weeks, better to do it with longer until the first leaf that grow.
Is it necessary to use vegetative reproduction? No, but easier start by daughter plant than start from seeds
Difficulties or problems when growing: Invasive, aggressive
Recommended planting season? Spring in hardiness zone 9b, spring to summer in hardiness zone 10a, spring to autumn in hardiness zone 10b-11, all year in hardiness zone 12+
Pests and diseases: Snails, slugs
Pruning season: All year, better for design in winter
How to prune: Dead leaves and dead bloom stems, old plants, just for design
Size of the plant: 10-20 cm, 4-8 inches
Growth speed in optimal condition: Fast growing / Medium growing
Water requirement: Small amount of water, possible to let it without water for a long period, the plant can grow in regular amount of water and need more water especially in the blooming season but when increase the amount of water need to be good drainage
Light conditions in optimal condition for growing: Full Sun, can grow in less than half shade well, 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, containers: Yes, when grow in container possible to start by 5L (1.5 gallon) but it’s for few plants connected together, in order to get impressive and blooming plant need at least 15-20L (4-5 gallons), but in order to get flowers after few years need to check that the roots system not fill all the planter, if it’s full need to reduce that amount of plants and cut the roots or to increase the size of the container, except this need to pull old plants after having flowers, pruning the leaves and roots and reduce the amount of roots in the pots and let new roots to grow, every few years need to check the soil that it’s still viable and if not take care of the soil by washing the old soil and put new, soil better to have potting mix or something similar.
Bloom season: All year, in cold climate not in the winter
General information about the flower White flowers like hair and grow stem in raceme inflorescence.
How to grow Pennisetum clandestinum from seed
Sowing requirement: Sunny location with good drainage
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: 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