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Artichoke, Imperial Star Hybrid

Short Description

Grow your own artichokes and enjoy the large, edible flower buds at their prime.

Full Description

Attractive plants with grey-green foliage grow 4 ft. tall with a similar spread. High yields of sweet, mild tasting flower buds, 4 1/2" in diameter are very slow to open when mature and are produced the first year.
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Item#: 56705A
Order: 1 Pkt. (25 seeds)
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$5.95
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Product properties

Days To Maturity The average number of days from when the plant is actively growing in the garden to the expected time of harvest.

80-90 days

Fruit Size The average size of the fruit produced by this product.

3-6 inches

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

Spread The width of the plant at maturity.

48 inches

Height The typical height of this product at maturity.

36-48 inches

Sow Method This refers to whether the seed should be sown early indoors and the seedlings transplanted outside later, or if the seed should be sown directly in the garden at the recommended planting time.

Indoor Sow

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Artichokes
Artichokes are easy to grow and are a gourmet treat.
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Introduction to Raised Bed Gardening
If you’ve ever wanted to know just what raised bed gardening is then this is the place to start.
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How to Sow

Sowing Seed Indoors:

  • Wrap artichoke seeds in a damp towel and store in the refrigerator for two weeks before sowing. This will provide the cold period that they need in order to germinate.
  • Once chilled, plant seeds ¼ inch deep in individual pots 6-8 weeks before last expected frost.
  • 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 3 pairs of 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 deep, fertile, well-drained soil. In hot areas, afternoon shade is helpful.
  • Prepare the bed by turning the soil under to a depth of 8 inches. Level with a rake to remove clumps of grass and stones.
  • Set plants 3-4 feet apart in rows 4-5 feet apart.
  • Dig a hole for each plant large enough to amply accommodate the root ball.
  • Carefully remove the plant from its pot and gently loosen the root ball with your hands to encourage good root development.
  • Fill the planting hole with soil to the top and press soil down firmly with your hand leaving a slight depression around the plant to hold water.
  • Use the plant tag as a location marker. This is particularly important if you are trying different varieties. It is very difficult to tell which variety is which from the foliage.  
  • Water thoroughly, so that a puddle forms in the saucer you have created. This settles the plants in, drives out air pockets and results in good root-to-soil contact.
  • Mulch deeply to keep the soil as cool as possible.

How to Grow

  • 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. Avoid disturbing the soil around the plants when weeding.
  • Keep plants well watered during dry periods to promote rapid, uninterrupted growth. 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.
  • Monitor for pests and diseases. Check with your local Cooperative Extension Service for pest controls recommended for your area.

Harvest and Preserving Tips

  • In areas with short growing seasons artichokes will not flower until the second year.
  • The flower buds and stalks contain the tender heartmeat that is consumed.
  • For single harvest, cut the flower buds and stem by the base of the leaves just before the bud opens, which is about 180 days from transplanting.
  • For multiple harvests, cut the flower bud one inch below the bud and allow the stem to send out additional flower buds.
  • Successive buds will be smaller than the first, but just as tasty.
  • The artichoke petals, heart, and stem all contain the tender fiber that is so delicious when steamed.
  • Store fresh artichokes in a sealed plastic bag in the refrigerator for a week.
  • Artichoke hearts may be preserved in olive oil, or pickled.
  • Artichoke hearts or the whole head may be blanched and frozen.
Days To Maturity
80-90 days
Fruit Size
3-6 inches
Sun
Full Sun
Spread
48 inches
Height
36-48 inches
Sow Method
Indoor Sow
Planting Time
Spring
Sow Time
6-8 weeks BLF
Thin
4 feet
Life Cycle
Annual
Artichoke, Imperial Star Hybrid is rated 3.0 out of 5 by 15.
Rated 5 out of 5 by from They all sprouted! I'm not the best when it comes to starting veggies from seed but I started these in March and every one of the 25 seeds sprouted. They are now outside hardening off and I hope to plant them this week. So far, they are about 10" tall.
Date published: 2015-04-18
Rated 5 out of 5 by from Sprouted first week. I read all the other reviews and have decided to try artichoke growing in MA. I planted 1 packet indoors last week and have 9 sprouts as of yesterday. I was shocked when my husband said there were sprouts in the tray. I will update as time progresses. So far very happy.
Date published: 2015-01-25
Rated 1 out of 5 by from 0/50 This was our second year trying these seeds, and even after doing research on planting instructions and mediums, we didn't get a single seedling. We appreciate Burpee's refund policy, but are very disappointed with the product.
Date published: 2014-04-21
Rated 2 out of 5 by from Artichoke Seeds I ordered one packet and only got one seed to grow was a little disappointed. Tryed looking in different stores that carried Burpee Seeds but nobody had them. So today I ordered two more packs of seeds and hopefully I will get more than one plant out of them. Also hoping it won't be to late to start them and get them in the ground on time.
Date published: 2013-03-18
Rated 5 out of 5 by from Great Germ Rate I ordered two packets of the imperial star artichoke and from those fifty seeds, i got twenty nine plants. I soaked the seeds over night in water than planted them into a mixture of half peat moss half perlite. my seeds sprouted within three days. I recomend this product to everyone.
Date published: 2013-01-29
Rated 5 out of 5 by from Produced first year I read these reviews, but I actually thought these were great. I started them indoors in Feb 2010, and transplanted 6 plants outside in April. Had artichokes by July and had so many I had to give some away! The guy at our local nursery wouldn't even believe me that I had artichokes the first year, but I had plenty. This year had a couple of plants killed by gophers, but still had more artichokes then we could eat!
Date published: 2011-07-29
Rated 1 out of 5 by from Poor Germination Rate Only (3) plants germinated out of the entire packet. Very disappointing for the money.
Date published: 2011-06-03
Rated 1 out of 5 by from None of the seeds germinated! I have always wanted to grow artichokes, but sadly, i have never had any luck with them at all! i put every one of these seeds in seed starting formula and none of them came up! i even tryed sowing them directly in the garden! That didnt even work :(
Date published: 2010-05-23
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