Superba Yellow Begonia

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Now shipping to zones 2-10.
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SKU
AM018386

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The bright yellow blossoms of Superba Yellow Begonia are reminiscent of fresh lemons, and almost as large! Superba Yellow boasts double flowers so large and abundant, the attractive green foliage is often hidden from view. Bright color, strong serrated leaves, and a compact habit are the hallmarks of the Superba series. Vigorous season-long blooming makes this begonia an outstanding choice to brighten shade and part-shade garden containers, tablescapes, and garden spaces. (Begonia)
Zones 3 - 10
Advantages
Attract Hummingbirds
Good For Containers
Light Requirements
Half Sun / Half Shade
Full Shade
Mature Plant Size10-12" tall
Bulb Spacing3 bulbs per sq. ft.
Bloom TimeLate spring until fall
SKUAM018386

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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Plant Information

(10-12” tall x 12” wide) Enjoy the double blooms of ‘Superba Yellow’ Begonia in your shade and part-shade locations – particularly in containers where its tight, rounded habit can be appreciated. Unlike many commercial begonias grown primarily for their foliage, ‘Superba Yellow’ blooms early and blooms vigorously – providing color throughout the summer and right up until frost. Plant the tubers in organically rich, well-drained soil. If your shady spaces are filled with tree roots, use pots filled with Begonia ‘Superba Yellow’ and other colors in this series to create living floral arrangements. In fall, containers can be brought inside where tubers will go dormant in a cool, dry location. Give begonias water and warmth indoors in the early spring to get a jump-start on the flowering season.

More Information
Associated SKUsAM018386
AM018064 (Bag of 3)
AM018356 (Bag of 15)
Common Name
Superba Yellow Begonia
Botanical Name
Begonia Superba Yellow
Flower Color
Yellow
Flower Size
6" flowers
Foliage
Glossy green foliage with serrated edges.
Light Requirements
Half Sun / Half Shade, Full Shade
Bloom Time
Late spring until fall
Mature Height
10-12" tall
Bulb Spacing
3 bulbs per sq. ft.
Bulb Size
6 cm
Planting Depth
Plant 2" deep.
Soil Type
Sandy Soil, Loamy Soil
Soil Moisture
Average, Well Draining
Advantages
Attract Hummingbirds, Good For Containers
Additional Information
Perennial in zones 8-10. Annual in zones 3-7.
Zones
3, 4, 5, 6, 7, 8, 9, 10
Ships As
Bulb, Rhizome, Tuber
Poisonous or Toxic to Animals
All parts of plant are poisonous if ingested. Contact with parts of the flower can cause dermatitis. Toxic to dogs, cats and horses.
Planting Time
Spring / Summer
Ships to Hawaii, Alaska & Canada
No
Planting & Care

Planting Begonias

We recommend starting begonia tubers indoors in the late winter, around February or March. If starting indoors, place planted begonias in a warm location with indirect sunlight, preferably an eastern, western, or south facing window. If you don't have an indoor window space, you will need a heat lamp to allow some light for growth. However, tubers can be planted from February to June depending on your region. In areas with hot summer temperatures, it's best to have begonias established earlier in the season. In colder zones, tuberous begonias are tender and cannot be placed outdoors during frost. Come spring, once the ground warms and the chance of frost is over, bring your begonias outdoors and either keep them in containers or transplant into the garden.

Planting Steps

  1. Prepare your garden bed or container. If planting in a garden, dig a hole a few inches deep to cover the tuber. If planting in a pot, find a pot that is twice the size of the bulb. Fill the pot 3/4 full with potting soil. Choose soil mixes with peat moss, because they retain moisture and create slightly acidic soil.
  2. One side of the tuber has a hollow dip and the other is round. Place the tuber round side down. The hollow dip is the top, sometimes it will already be sprouting buds. If the buds are coming up, gently place the tubers in the pot. The new growth is fragile, so try not to bump or break it.
  3. Cover tuber with soil, and water around the bulb. Keep pot or garden moist, but not to wet. Too much water will rot your begonias. Expect growth in 3-4 weeks after planting. If growing conditions aren't ideal, begonias can take longer to grow.
  4. After begonias have sprouted and are a couple of inches tall, you can transplant if desired. If you live in colder climates and it's free of frost, you can place outside.

Watering and Fertilizing

After planting tubers water slightly every few days or when the soil dries out. Begonias will rot if over watered, it's best to keep their soil just barely moist. Always water around the tuber, not directly on it. Fertilize every other week with a 20-20-20 organic fertilizer.

Aftercare and Storing Bulbs

In the fall after the leaves turn yellow, and or temperatures reach below 40 degrees at night, bring your begonias inside and use as a house plant or save for next spring. Begonias will naturally begin to slip into dormancy by themselves. In colder zones dig up tubers once the foliage has passed and store in a cool, dry, non-freezing place until spring. Allow tubers to dry out for 5-7 days before storing to reduce mold and rot. It is best to place tubers in a cardboard box or paper bag full of peat moss. Make sure to label the tuberous begonias for the following season.

Further Reading:

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As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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Over $100 $39.95

If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. If you have any questions, please call us at (877) 309-7333.

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