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Sunflower, Kong Hybrid

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Short Description

Fast-growing giant.

Full Description

The most stunning of our giant sunflowers, with sturdy stems and lush leaves. It forms a massive wall of foliage topped off with extra large, perfectly round 10" golden flowers. Rapid growth from seed to maturity by mid-summer.
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Quantity
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Item#: 36025A
Order: 1 Pkt. (25 seeds)
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$4.99
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Product properties

Type Some flowers and vegetables fall into subcategories that may define how they grow (such as pole or bush), what they are used for (such as slicing tomatoes or shelling peas), flower type, or other designations that will help you select the type of a class of plant that you are looking for.

Giant

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.

168 inches

Spread The width of the plant at maturity.

36-40 inches

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

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

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Growing Sunflowers
See how easy it is to grow these summertime favorites.
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  • Sunflowers

    Sunflowers
    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: May-09 - Last Date: May-16
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Sunflowers are grown from seed sown directly in the garden after frost.

  • Direct sow seeds in average soil in full sun after all danger of frost.
  • When choosing a site consider that sunflowers need a well-drained soil.  They face the sun, so make sure they are in an open area of the garden. The taller varieties will cast shadows on other plants, so plant these at the north end of your garden.
  • Prepare the soil by removing weeds and working organic matter into the top 6-8 inches of soil; then level and smooth.
  • Most plants respond well to soils amended with organic matter. Compost is a wonderful form of organic matter with a good balance of nutrients and an ideal pH level, it can be added to your planting area at any time. If compost is not available, top dress the soil after planting with 1-2 inches of organic mulch, which will begin to breakdown into compost. After the growing season, a soil test will indicate what soil amendments are needed for the following season.
  • Sow seeds ½ inch deep in groups of 2 or 3 seeds. Space the groups 18-24 inches feet apart, depending on the variety.
  • Firm soil lightly, water and keep evenly moist.
  • Seedlings will emerge in 7-10 days.
  • Thin to one plant per group when seedlings have two sets of leaves.
  • 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.
  • Keep soil evenly moist but not wet.
  • Once established sunflowers can tolerate drought.
  • No fertilizer is needed unless the soil is poor. Do not over fertilize.
  • Monitor for pests and diseases. Check with your local Cooperative Extension Service for pest controls recommended for your area.
  • Some varieties only produce one bloom so once the bloom is spent, the plant may be removed.
  • Remove plants after they are killed by frost in fall to avoid disease issues the following year.
  • Edible sunflowers will mature in about 3 months or more after sowing. To harvest the seeds, cut the heads off after the stalks are quite dry but before fall or winter rains come. Check the flower heads for maturity to see if the florets in the center of the flower disk have shriveled and the back of the flower head is turning yellow, or the head is starting to droop. Cut flower-heads with a foot of the stalk attached. Hang heads in a warm, dry, well-ventilated place so the seeds may fully ripen and dry. Cheesecloth, netting or a paper bag with holes punched in for ventilation should be placed over the head to protect the seeds and to collect those that may drop from drying.
  • Shorter varieties may be grown in containers. Be sure to use a commercial potting mix.
  • Pollenless varieties make terrific cut flowers.
Type
Giant
Sun
Full Sun
Height
168 inches
Spread
36-40 inches
Ornamental Use
Borders, Cut Flowers
Life Cycle
Annual
Growth Habit
Erect
Sow Method
Direct Sow
Bloom Duration
6 weeks
Flower color
Gold, Yellow
Sunflower, Kong Hybrid is rated 4.4 out of 5 by 19.
Rated 5 out of 5 by from HUGE number of blooms! Amazing ! I bought these seeds a little late, and planted them July 14. They took off immediately, but I didn't have blooms until September (because they should have been planted June 1st. Absolutely amazing. I kept making flower arrangements for everyone. Next year I will plant near June 1 to extend the season.
Date published: 2017-10-13
Rated 5 out of 5 by from Good plant Good grower even with slightly less light than recommended.
Date published: 2017-08-19
Rated 2 out of 5 by from Not giants, mutants I paid extra money to get the biggest sunflowers available on the market. What I got were mutants. While very interesting, it is not what I wanted. They had 5 to 20 heads and none were over 5 feet tall. Photos on request.
Date published: 2017-07-19
Rated 1 out of 5 by from Planted two packets, got one flower Two out of 50 sprouted. Only one thrived. Planted in ideal conditions. Plenty of sun and automatic sprinkler system
Date published: 2017-07-18
Rated 5 out of 5 by from Bright sunny flowers greet friends and neighbors I planted Kong Hybrid sunflowers early in the spring and now they are like a bright line of sunshine across the side of our home!
Date published: 2017-07-15
Rated 5 out of 5 by from Awesome I bought sunflower seeds ( chipmunks and deer ) got to them sorry to say but s few survived.. waiting gif them to bloom and extremely excited about my Hibuscus plzntbit id growing but no blooms yet ..can't wait fir them to bloom
Date published: 2017-07-15
Rated 3 out of 5 by from Not tall like the claims Sure, these are pretty decent size, mine have all bloomed and are about 7-8 feet, NONE of them are KONG size. They have had plenty of water and sunlight too.
Date published: 2017-06-23
Rated 5 out of 5 by from Kong is the King of Sunflowers Last summer was my second year in a row that I had Kong sunflowers from Burpee in the front yard. I always allow some "volunteers" to survive that have been planted by careless birds beneath my winter birdfeeders. I enjoy the surprise of what they are from year to year. For added height, I love to plant Kong at strategic spots to make it more interesting. Kong is just the right choice for that! The stalks are incredibly thick, strong, and resilient. Tall? YES! They reached higher than the eaves of my house, with many branches and blooms on each plant. Neighbors and people passing through the neighborhood stopped to take pictures and I always let them cut a few blossoms if they want them. You can easily grow these, too. They just need reasonably good soil and drainage, and most importantly, lots of direct sunshine! Thanks to the birds and Burpee's Kong, my house is now known as the Sunflower House.
Date published: 2017-04-15
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