Astilbe grow and care – herbaceous rhizome of the genus Astilbe also known as False spirea or False goat’s beard, Astilbe perennial evergreen or deciduous used as ornamental fragrant cut flower plant, can grow in temperate or cold mediterranean, subtropics climate or as houseplant and growing in hardiness zone 4-10a, possible to grow in the right care in hardiness zone 10b.
Leaves color green elliptic with serrated margin some leaves grow in groups 3 to 7 leaves.
Flower fragrant color can be: red, white, pink, burgundy, purple, cream, yellow or orange, the flowers small with linear petals, growing in inflorescence, in cones shape or multi cones that create like pyramids.
How to grow Astilbe plant – growing conditions and care:
Cold climate, mulch, in warm summer area better to plant them in the coldest point and in the shade, rich soil and organic matter it keep the soil moist, organic matter mixed with lighter soil for drainage for example coco soil
How to care: Put fertilizer one a year before blooming season add organic matter, winter care in hardiness zone 4-6 better to put mulch in order to protect the plant
What is the best way to start growing? Plant / Seed (sowing explanation bellow) / Vegetative reproduction
Is it necessary to use vegetative reproduction? No, possible but to grow from seeds it’s easy and might die in the transplant, better to transfer the plant in the autumn or early spring
Difficulties or problems when growing: Sensitive to transplant
Planting season – when to plant: Spring, summer (be aware that better not in hot days, check temperature for the next week before plant it), also possible to plant it in the autumn to the winter, but need to be fully growing plants, when start from seeds better to sow them direct in the soil in the early spring or even in the winter, seeds need before sowing burying (chilling hours)
When to transplant: Better to transplant in winter
How to transplant: Need to take all the roots and the soil around the plant
Pests and diseases: Thrips, aphids, leaf spot
Pruning season: Winter
How to prune: Dead flower and for design
Size of the plant? 20-60 cm, 8-24 inches
Growth speed in optimal condition: Fast growing / medium growing
Water requirement: Average amount of water / big amount of water, the plants require big amount of water but it doesn’t wet soil or puddle, the plant need good drained, if the drainage not good put less water don’t let the water stand, and better to water it few time a day and then you can use less water and the soil can absorb and use better in water
Light conditions in optimal condition for growing: Half Shade, be aware that in area with hot summer the plant might be burn in the sun and even die / Full Shade
Is it possible to grow as houseplant? Yes
Growing is also possible in a planter /flowerpot / containers: Yes, need to switch every few years the soil, (when the soil doesn’t absorb the water well), this plant is sensitive to standing water need to make holes in the bottom of pots in order to allow excess water to flow out, if the water standing in the pot make more holes and check the soil viability.
Bloom season: Spring / Summer / Autumn
General information about the flower: Fragrant flowers color can be: red, white, pink, purple, yellow or orange, the leaves small growing in inflorescence, in cones shape.
How to grow Astilbe plant from seed Sowing requirement: when start from seeds better to sow them direct in the soil in the early spring or even in the winter, seeds need before sowing burying (chilling hours), moist soil, half shade to full shade
Saving seeds and care until sowing: Dry location and in refrigerator, before sowing need burring
Sowing season: Spring / Summer in hot day will do problem of the germination
Planting spacing: 30*40cm, 12*16 inches
Depth of Sowing: 1cm, (0.5inches)
Conditions for seeds germinate: Moist soil, humidity
Watering requires for Seeds: Average amount of water, don’t over water and don’t let it dry
Germination time: 2-6 weeks
Condition of seedling: Moist soil, rich soil, mulch, if in the summer full shade
Do the seeds require burying? Yes
Chilling hour’s requirements: 1-2 month
Burgundy red (also known as Astilbe x arendsii Burgundy red) – Leaves color is deep red to burgundy, when mature the plant can reach 50 to 60cm (20 to 24 inches) height with a spread of 45 to 60cm (18 to 24 inches).
Fireberry – When mature the plant can reach 30 to 45cm (12 to 18 inches) height with a spread of 40 to 55cm (16 to 22 inches), flowers bloom from early to mid-summer, flowers color is deep pink, leaves color is medium green.
Showstar – When mature the plant can reach 30 to 60cm (12 to 24 inches) height with a spread up to 45cm (18 inches), flowering months are in summer, flower color is red, pink, white or lilac, foliage color is golden in the spring and dark green in the summer.
Ice cream – Foliage color is dark green, flowers color is light pink to lilac plums, when mature the plant can reach 60 to75cm (24 to 30 inches) height with a spread up to 45 to 60cm (18 to 24 inches).