How to grow Begonia grandis

Begonia grandis grow and care – herbaceous of the genus Begonia also known as Hardy begonia, Begonia grandis, perennial evergreen or deciduous and also can grow as annual used as ornamental plant, can grow in subtropics, mediterranean, temperate climate or indoor as houseplant and growing in hardiness zone 6-9 and with the right care in hardiness zone 10a.

Leaves color green in heart shape the margin can be serrated.

Begonia grandis flowers

Flower color pink or white with four petals the petals are in two size grow in opposite pairs

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How to grow Begonia grandis growing and care:

Humid, moist soil, rich soil, mulch

How to care:
Fertilizer 2-4 times a year, add humus and organic matter, prune once a year better after the bloom.

What is the best way to start growing?
Plant / Seed (care explanation bellow) / Vegetative reproduction – cutting need to be above 22-26C (72-80F) also the water can’t be cold, high humidity, better in full shade for cutting on the water need to switch the soil every few days in growing, to put the stems in soil need moist soil and water it with spray better to use growth hormone and peat soil.

Is it necessary to graft or use vegetative reproduction?
No, but easier to start by cutting than seeds

Difficulties or problems when growing:
Heat wave might kill the plant, invasive

Planting season:
Spring to summer in hardiness zone 6-8, spring to autumn in hardiness zone 9-10a

How to plant:
Planting in bigger hole and put organic matter, chopped dead leaves and humus, put the plant and cover it lightly

Pests and diseases:
Aphids, mealy bugs, powdery mildew

Pruning season:
Autumn / Winter

How to prune:
Dead part and for design

Size of the plant?
30-60 cm, 12-24 inches

Growth speed in optimal condition:
Fast growing / Medium growing

Water requirement:
Average amount of water / Big amount of water

Light conditions in optimal condition for growing:
Half Shade better without sun in the noon/ Full Shade (with light) (in places with hot summer must be in summer)

Is it possible to grow indoor as houseplant?
Yes, when grow indoor need to give the plant enough light

Growing is also possible in a planter /flowerpot / containers:
Yes, when grow in container, size 10-20 liter (2.5-5 gallon), average amount of water that needed, it’s to keep the soil moist and the water go out of the pot, better not to use bottom for the pot, when it’s grow as perennial every two years to switch soil, and prune part of the roots and the plants, soil need to be well ventilated with good drainage, rich with organic matter, can us in potting mix or peat soil with perlite or vermiculite.

Blooming information

Bloom season:
Summer / Autumn

General information about the flower
Pink or white flowers with four petals the petals are in two size grow in opposite pairs

How to grow Begonia grandis from seeds

Sowing requirement:
Small seeds, soil can be potting mix or peat soil with vermiculite 22-26C (70-80F), high humidity

Saving seeds and care until sowing:
Dry and dark location

Sowing season:
Spring to summer, possible to start in the early winter indoor

How to plant:
Better to put the seeds on vermiculite it’s help them to germinate

Planting spacing:
15*20cm (6*8 inches)

Depth of Sowing:
On the soil or 0.5cm (0.25 inch)

Conditions for seeds germinate:
High humidity and temperature 22-26C (70-80F)

Watering requires for Seeds:
Average amount of water / Big amount of water, better to use spray of water twice a day

Germination time:
2-5 weeks

Condition of seedling:
Seedling gentle and better to let them to grow a little bit before transplant and also keep high humidity and expose it to more light

sScientific name:

Begonia grandis

How to grow Begonia grandis

Growing Begonia grandis

Begonia grandis flower

Begonia grandis plant

Begonia grandis growing

Begonia grandis plant

Begonia grandis


Blooming Seasons
  • Spring flowers
  • Summer flowers
Flower colors
  • Pink flower
  • White flower
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
  • Tropics Climate
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
  • Fast growing plants
Plant life-form
  • Annual plant
  • Evergreen
  • Herbaceous
  • Perennial plant
Plant Uses
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Summer planting
  • Winter planting
Plants sun exposure
  • Part shade Plants
  • Shade Plants
Watering plants
  • Big amount of water
  • Regularly water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 12
  • Hardiness zone 13
  • Hardiness zone 6
  • Hardiness zone 7
  • Hardiness zone 8
  • Hardiness zone 9