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Rhizomatous Begonias
BRASSICACEAE/CRUCIFERAE
| Rhizomatous Begonias are variable,
mostly evergreen perennials grown mostly for their foliage and small
single flowers. The leaves are smooth, crested or puckered, and
occasionally twisted, leaves are green or brown and 3-12in (8-30cm)
long, and often having silver marking. The creeping cultivars are more
freely branching than the upright cultivars and more suited to use in
hanging baskets. |
| Varieties: -
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Begonia.
'Beatrice Haddrell'
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Form: A
creeping rhizomatous perennial.
Frost Tender:
Height: 8-12in (20-30cm)
Spread: 10-12in (25-30cm)
Foliage: Having deeply-cut, oval leaves 3-6in (8-15cm) long, which
are dark-green with paler veining.
Flowers: Through Winter and early Spring, producing single pink
blooms.
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Begonia.
'Bethlehem Star'
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 8-12in (20-30cm)
Spread: 10-12in (25-30cm)
Foliage: Having slightly indented, oval leaves less than 3in (8cm)
long, which are almost black with a creamy-green star.
Flowers: From late-Winter and through early-Spring, producing an
abundance of single, pale-pink flowers, with darker pink spots.
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Begonia.
'Bokit'
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Form: An
upright, evergreen, rhizomatous perennial.
Frost Tender:
Height: 8-12in (20-30cm)
Spread: 10-14in (25-35cm)
Foliage: Having spirally-twisted, oval, yellow-green leaves with
brown tiger stripes.
Flowers: During Winter prolifically produces single, white blossoms
flecked with pale-pink.
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Begonia. bowerae
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 8-12in (20-30cm)
Spread: 8-10in (20-25cm)
Foliage: Having oval, bright-green leaves 1in (2.5cm) long,
marked with chocolate blotches, and having bristles around the edge.
Flowers: During Winter freely producing single, pink-tinted,
white blossoms.
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Begonia. x erythrophylla
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See: Begonia
'Erythrophylla'
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Begonia.
'Erythrophylla'
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Syn:
Begonia. x erythrophylla &
Form: An evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 8in (20cm)
Spread: 9-12in (23-30cm)
Foliage: Having thick, almost rounded, mid-green leaves 3-6in
(8-15cm) long, with the leaf stalks attached at the centre of the red
underside; the slightly wavy margins having white hairs.
Flowers: During early-Spring producing single, light -pink flowers.
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Begonia.
'Feastii'
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See: Begonia
'Erythrophylla'
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Begonia.
'Iron Cross'
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See: Begonia.
masoniana
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Begonia.
'Mac's Gold'
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 8-10in (20-25cm)
Spread: 8-10in (20-25cm)
Foliage: Having star-shaped, lobed, yellow leaves 3-6in
(8-15cm) long, with chocolate brown marking.
Flowers: Through Spring and Summer producing a moderate
quantity of intermittent, single, pink blooms.
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Begonia. manicata
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Form: An
erect, evergreen, perennial.
Frost Tender:
Height: 24in (60cm)
Spread: 12-16in (30-40cm)
Foliage: Having large, oval, brown-mottled, green leaves, each
having a collar of stiff red hairs around the leaf stalk where it joins
the leaf.
Flowers: In very early Spring, producing single, pale-pink
flowers.
Propagate: By plantlets during the growing season. |
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Begonia. manicata
'Crispa'
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Syn: Begonia.
manicata 'Cristata'
Form: An erect, evergreen, perennial.
Frost Tender:
Height: 24in (60cm)
Spread: 12-16in (30-40cm)
Foliage: Having large, oval, light-green leaves, with crested
margins, each having a collar of stiff red hairs around the leaf stalk
where it joins the leaf.
Flowers: In very early Spring, producing single, deep-pink
flowers.
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Begonia. manicata
'Cristata'
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See: Begonia.
manicata 'Crispa' |
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Begonia. masoniana
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Syn: Begonia
'Iron Cross'
Form: An evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 18-24in (45-60cm)
Spread: 12-18in (30-45cm)
Foliage: Having toothed, oval, rough, bright-green leaves 6in
(15cm) long, with tapering tips, and cross-shaped black or dark-brown
centres.
Flowers: During Summer, producing single, pink-flushed, white
flowers.
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Begonia. mazae
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Form: An
evergreen, trailing rhizomatous Begonia.
Frost Tender:
Height: 9in (23cm)
Spread: Indefinite
Foliage: Having rounded, red-veined, bronze-green leaves.
Flowers: During early-Spring, producing fragrant, single,
red-spotted, pink flowers.
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Begonia.
'Oliver Twist'
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 18-24in (45-60cm)
Spread: 10-18in (25-45cm)
Foliage: Having pale to mid-green, oval leaves, 12in (30cm)
long, with heavily crested margins.
Flowers: Through early-Spring producing single pink flowers.
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Begonia. paulensis
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 10-12in (25-30cm)
Spread: 10-12in (25-30cm)
Foliage: Having erect stems, carrying rounded mid-green leaves
6in (15cm) long, and with white veining.
Flowers: During late-Spring produces, single, cream-white
blooms, having wine-coloured hairs.
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Begonia. prismatocarpa
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 6-8in (15-20cm)
Spread: 8-10in (20-25cm)
Foliage: Having oval, light-green leaves less than 3in (8cm)
long
Flowers: All year round, producing single, bright-yellow
flowers.
Requires: 60-65% relative humidity |
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Begonia. pustulata
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender: Prefers a minimum temperature of 72-75oF
(22-24oC) with relative humidity of 70-75%
Height: 6-8in (15-20cm)
Spread: 8-10in (20-25cm)
Foliage: Having oval, fine-haired, dark-green leaves, with
small blisters or pustules
Flowers: During Summer, producing single, rose-pink flowers.
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Begonia. pustulata
'Argentea'
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Syn: Begonia.
'Silver'
Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender: Prefers a minimum temperature of 72-75oF
(22-24oC) with relative humidity of 70-75%
Height: 6-8in (15-20cm)
Spread: 8-10in (20-25cm)
Foliage: Having oval, fine-haired, dark-green leaves, with
small blisters or pustules
Flowers: During Summer, producing single, rose-pink flowers. |
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Begonia. rex
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Form: rhizomatous perennial.
The parent of Rex-Cultorum Begonias
Frost Tender:
Height: 10in (25cm)
Spread: 12in (30cm)
Foliage: Having 8-10in (20-25cm) long, heart-shaped, deep-green
leaves, with a metallic sheen, zoned with silvery-white.
Flowers: During Winter, producing pink flowers.
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Begonia.
'Scherzo'
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 10-12in (25-30cm)
Spread: 12-14in (30-35cm)
Foliage: Having highly-serrated, small, oval, yellow leaves,
with black marking.
Flowers: During early-Spring producing single, white flowers.
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Begonia.
'Silver'
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See: Begonia.
pustulata 'Argentea' |
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Begonia.
'Tiger Paws'
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Form: An
evergreen, creeping rhizomatous perennial.
Frost Tender:
Height: 6in (15cm)
Spread: 10-12in (25-30cm)
Foliage: Having striking, small, rounded, bright-green leaves
marked with yellow and brown splashes, with bristle-like white hairs at
the edges.
Flowers: During Spring producing many clusters of single, white
flowers held well above the foliage.
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Begonia. versicolor
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Form: An
evergreen, creeping, rhizomatous perennial.
Frost Tender: Prefers a minimum temperature of 70-75oF (21-24oC)
with 75% relative humidity
Height: 10-12in (25-30cm)
Spread: 12-14in (30-35cm)
Foliage: Having oval, dark-green leaves 6-9in (15-23cm) long,
with yellow veins, purple and hairy on the underside.
Flowers: During Summer, producing single, orange-yellow
flowers.
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Begonia. xanthina
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Form: An
evergreen, bushy, creeping, rhizomatous Begonia.
Frost Tender: Prefers a minimum temperature of 61-66oF (16-19oC)
with 65-70% relative humidity
Height: 6in (15cm)
Spread: 6-12in (15-30cm)
Foliage: Having broadly oval or oblong, velvety leaves 3in
(8cm), in shades of mahogany, apple-green and maroon.
Flowers: During Spring-Summer producing single, salmon-pink
flowers. |
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Cultivation: -
Rhizomatous Begonias
prefer to be grown in well-drained soil and should only be watered very
sparingly. In cool climates they should be grown under glass, and all
should be provided with a partially shaded position.
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Propagation: -
Sow seed in late Winter
or early Spring at 70oF (21oC)
Take stem tip or leaf cuttings
in Spring or Summer.
Rhizomes may be
divided in Spring.
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Frost Tender
Minimum temperatures
should be 55-59oF (13-15oC), but prefers to grow in
temperatures of around 66oF (19oC) with 40-75%
relative humidity.
Pests & Diseases: - Susceptible
to powdery mildew and botrytis if the leaves get wet.
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