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Pentas, Starcluster Red

Short Description

Large clusters of vibrant red starlike flowers irresistible to butterflies and bees.

Full Description

Abounds with large clusters of vibrant red starlike flowers and dark-green lanceolate leaves until frost. Easy-growing, low-upkeep 14-18" tall variety requires no deadheading as new flowers form over spent blooms. Well-branched plants are bred to thrive in hot summer conditions. Excellent in the landscape or starring in a patio container. Nectar-rich flowers prove irresistible to butterflies and bees. Full sun.
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Item#: 22621
Order: 3 Plants
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$19.99
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Product properties

Sun The amount of sunlight this product needs daily in order to perform well in the garden. Full sun means 6 hours of direct sun per day; partial sun means 2-4 hours of direct sun per day; shade means little or no direct sun.

Full Sun

Height The typical height of this product at maturity.

14-18 inches

Spread The width of the plant at maturity.

14-18 inches

Ornamental Use Ways in which the product may be used in the garden for ornamental effect.

Beds, Borders, Cut Flowers

Life Cycle This refers to whether a plant is an annual, biennial or perennial. Annuals complete their life cycles in one year; biennials produce foliage the first year and bloom and go to seed the second year; perennials can live for more than two years.

Annual

Growth Habit The genetic tendency of a plant to grow in a certain shape, such as vining or bush like.

Mound

Plant Shipping Information

Plants begin shipping week of:

May 07, 2018

Click here for Spring shipping schedule

Restrictions:

Item 22621 cannot ship to: AA, AE, AK, AP, AS, CN, FM, GU, HI, MH, MP, PR, PW, VI
See all Burpee plant shipping restrictions for your state

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Video

Annuals Tour #1
Take a garden tour and see favorite annual plants in a garden setting. In this video- Zinnia, Angelonia, Marigold, Petunia, Celosia and Vinca.
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  • Pentas

    Pentas
    Start Indoors Start Indoors Starting seeds indoors is called Indoor Sow or Indirect Sow and these dates are when to sow seeds indoors in the spring or summer
    Transplant Transplant When to transplant bulbs or roots in the garden for spring
    Start Outdoors Start Outdoors Starting seeds outdoors is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the spring or summer
    Start Indoors Fall Start Indoors Fall Starting seeds indoors in the fall called Indoor Sow or Indirect Sow and these dates are when to sow seeds outdoors in the fall
    Transplant Fall Transplant Fall Transplant Fall-When to transplant bulbs or roots in the garden for fall
    Start Outdoors Fall Start Outdoors Fall Starting seeds outdoors in the fall is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the fall
    First Date: Feb-08 - Last Date: Feb-22
    First Date: May-02 - Last Date: Jun-01
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How to Sow and Plant

Pentas may be grown from seed sown early indoors and transplanted outside after frost, or planted as a potted plant.

Sowing Seed Indoors:

  • Sow pentas indoors 7-9 weeks before the last frost.
  • Sow pelletized seeds in seed starting formula but do not cover.
  • Keep the soil moist at 75 degree F
  • Seedlings emerge in 14-21 days
  • As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath fluorescent plant lights turned on 16 hours per day, off for 8 hours at night. Raise the lights as the plants grow taller. Incandescent bulbs will not work for this process because they will get too hot. Most plants require a dark period to grow, do not leave lights on for 24 hours.
  • Seedlings do not need much fertilizer, feed when they are 3-4 weeks old using a starter solution (half strength of a complete indoor houseplant food) according to manufacturer’s directions.
  • If you are growing in small cells, you may need to transplant the seedlings to 3 or 4 inch pots when seedlings have at least 2 pairs of true leaves before transplanting to the garden so they have enough room to develop strong roots
  • Before planting in the garden, seedling plants need to be “hardened off”. Accustom young plants to outdoor conditions by moving them to a sheltered place outside for a week. Be sure to protect them from wind and hot sun at first. If frost threatens at night, cover or bring containers indoors, then take them out again in the morning. This hardening off process toughens the plant’s cell structure and reduces transplant shock and scalding.

Planting in the Garden:

  • Select a location in full sun with organic, well-drained soil.
  • Prepare the bed by turning the soil under to a depth of 6-12, inches removing any debris, and lightly raking as level as possible.
  • The addition of organic matter (leaf mold, compost, well-rotted manure) benefits all gardens and is essential in recently constructed neighborhoods.
  • Plant on a cloudy day or in late afternoon to reduce transplant shock.
  • Dig a hole for each plant, approximately 12 inches apart large enough to amply accommodate the root ball.
  • Unpot the plant and gently loosen the root ball with your hands to encourage good root growth.
  • Place the top of the root ball even with the level of the surrounding soil. Fill with soil to the top of the root ball. Press soil down firmly with your hand.
  • Use the plant tag as a location marker.
  • Water well.
  • Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their seeds from germinating.
  • Mulches also help retain soil moisture and maintain even soil temperatures. For annuals an organic mulch of shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time. Always keep mulches off a plant’s stems to prevent possible rot.
  • Plants need about 1 inch of rain per week during the growing season. Use a rain gauge to check to see if you need to add water. It's best to water with a drip or trickle system that delivers water at low pressure at the soil level. If you water with overhead sprinklers, water early in the day so the foliage has time to dry off before evening, to minimize disease problems. Keep the soil moist but not saturated.
  • Until plants become established, some protection from extreme winds and direct, hot sunlight may be necessary. Good air movement is also important.
  • After new growth appears, a light fertilizer may be applied. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Use low rates of a slow release fertilizer, as higher rates may encourage root rots.
  • Remove spent flower heads to keep plants flowering until fall.
  • Monitor for pests and diseases. Check with your local Cooperative Extension Service for pest controls recommended for your area.
  • Remove plants after they are killed by frost in fall to avoid disease issues the following year.
  • Pentas are perfect for butterfly gardens, beds, borders, baskets and containers.
  • These flowers look lovely with other warm-weather annuals.
  • Plants are very heat and drought tolerant once established.
Sun
Full Sun
Height
14-18 inches
Spread
14-18 inches
Ornamental Use
Beds, Borders, Cut Flowers
Life Cycle
Annual
Growth Habit
Mound
Sow Method
Indoor Sow
Flowering
Yes
Bloom Duration
10 weeks
Flower color
Red
Pentas, Starcluster Red is rated 4.7 out of 5 by 3.
Rated 5 out of 5 by from Brilliant display, constant blooms I bought these this past spring. They are bright, cheerful, and very easy to care for! The "star" of my flower bed!
Date published: 2017-07-15
Rated 4 out of 5 by from Love the tiny stars I love to use Penta to replace the pansies and other early blooming flowers. This year the Pentax. were not as tall as I anticipated or fill out as they had previously.
Date published: 2016-09-21
Rated 5 out of 5 by from Easy Peasy Pentas are sooo under rated. They bloom like crazy, take so little effort, and will grow under the worst (or best) of conditions. When I grew them in FL, they grew in full sun, full shade, poor soil, total neglect (once established), and bloomed year round.
Date published: 2016-01-31
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