The massive size and leaves of 'Gigantosaurus' will have your garden feeling like Jurassic Park. This variety will come roaring to life in early spring as one of the first Hostas to emerge. Large blue leaves have a wavy yellow margin. In summer yellow margins turn to creamy white. Pale lavender flowers first begin appearing in early summer and are held just above the foliage.
Hostas are exceedingly popular perennials in today's gardens due to their versatility in the landscape. Their subtle colors, tall flower scapes, and broad, coarse leaves fill a niche in garden designs that few other plants can achieve. Their large leaves provide excellent coverage for dying bulb foliage. Hostas also grow well in city environments where the air may be polluted by car exhaust, etc.
This premium hosta variety is part of a group of the finest hostas available today. To be considered a premium hosta, plants must perform superbly in many zones. They must also exhibit exemplary garden presence and performance, have a long season of appeal in the landscape, have leaves of good substance, and demonstrate a greater resistance to common garden pests.
The SHADOWLAND® trademark is owned by Walters Gardens, Inc.
20ct Plug Tray |
72ct Plug Tray |
Height:
30.0-32.0 Inches
Spread:
72.0-78.0 Inches
Scape Height:
24.0-30.0 Inches
Hardiness Zones:
3,4,5,6,7,8,9
Flower Color:
Purple shades
Foliage Color:
Blue shades
Sunlight:
Part Shade (4-6 hrs. Direct Sun) Full Shade (< 4 hrs. Direct Sun)
Water Requirements:
Average Water Needs Consistent Water Needs
Soil Quality:
Average Soil Quality Fertile Soil Quality
Soil Chemistry:
Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0)
Bloomtime:
Midsummer
Attracts Wings:
Attracts Hummingbirds
Growth Rate:
Medium
Garden Style:
Asian Patio Container Cottage Eclectic Formal Modern Woodland Shade
Other Features:
Container Cut Foliage Easy To Grow Attractive Foliage Mass Planting
Origin:
Not Native to North America
Hostas grow best in moist, well-drained, highly organic soils with a pH between 5.5 and 7.5. Sandy loam is better than clay because it provides more aeration for the roots. High-filtered or dappled sunlight is necessary for clean, healthy growth. Morning sun is tolerable and will help to intensify the leaf colors, but hot afternoon sun is usually deadly to hostas. They are most at home in shady, woodland settings and often work well as specimen or edging plants.
Especially in northern zones, hostas should be mulched with a layer of finely shredded organic material to prevent heaving in the winter. Mulch is beneficial because it retains moisture around the plant's roots, but it is also the ideal place for slugs to hide. Watch for holes in the center of the leaves. If they are present, so are slugs. Applying a slug bait in early spring when new shoots are beginning to emerge will help to reduce the slug population. After a few years when plants are firmly established, the mulch can be removed completely, which should eliminate the slug problem altogether. Also be sure to clean all hosta foliage out of the garden in early winter after the plants have gone dormant. By doing so, you will be ridding the area of the eggs of slugs and other leaf-eating insects.
Container:
Premium 1 Gallon Pot
When to Plant:
Late spring to mid summer
Finish:
8-10 weeks
Notes:
Best to bulk all summer for a full container the following spring.
Container:
Trade 1 Gallon Container
When to Plant:
Late spring to summer
Finish:
10-12 weeks; can also be finished into a Premium 1 Gallon Container in 16-20 weeks.
Notes:
Best to bulk all summer for a full container the following spring.
Container:
Premium 1 Gallon Pot
When to Plant:
Late spring to summer
Finish:
6-8 weeks
Notes:
Best to bulk all summer for sales the following spring.
Growing Temperature:
60° F, keep above freezing.
Soil PH:
5.8-6.5
EC (What is EC?):
1.5-2.0 pour through method
Fertility:
Hostas will benefit from a light application of liquid fertilizer (20-10-20 with 50 ppm nitrogen) in early spring. Since it is critical to keep all granular fertilizers far from plant crowns to avoid injury, liquid feed is safest. Alternatively, a top-dressing of slow release fertilizer may be used. Roots may rot if too much fertilizer is applied. In the fall, only a light application (if any) is necessary. Apply very little nitrogen in the fall to allow plants to go dormant.
Vernalization:
Required for 10-12 weeks at temperatures below 40° F.
Pests & Diseases:
Aphids are particularly fond of the new growth. If they feed excessively, the leaves may appear disfigured when they unfurl. Applications of Rycar, Endeavor and BotaniGard are effective at preventing aphids. Applications of Avid, Floramite, Sultan and predatory mites are effective on some varieties of hostas which are susceptible to spider mites. Mainspring, Conserve, Orius and predatory mites are effective against thrips. Slugs tend to seek out hostas. Good greenhouse sanitation before potting is the best way to prevent a slug outbreak. Mice and voles also enjoy a tasty meal of hosta roots and crowns. Prevent rodent problems by using bait or traps.
Potting & Timing:
Potting soil should be a well-drained, bark-based, soilless mix. Use a pot that corresponds with the size of the roots. Giving roots the space they need will allow plants to reach their optimum size and quality. When transplanting, it is best to spread or fan out the roots since this tends to encourage new growth. When transplanting in spring, keep hostas at 50° F for the first two weeks to promote root growth. Minimum temperatures may then be lowered to 40° F.
Moisture:
The best root development occurs when plants are allowed to dry out slightly between waterings. It is best to water early in the morning. As with all plants, it is important not to over-feed or over-water. Keep soil moist early in the growing season, but do not overwater. Later in the season, allow soil to dry out between waterings. Dormant hosta require very little water. Severe or prolonged dry conditions, on the other hand, may force hostas into dormancy and can reduce plant size the following year.
Planting Level:
Growing points or 'eyes' should be at or just below the soil surface.
PGRs/Pinching:
Providing adequate space is the best method to achieve nicely shaped hostas without stretching. If adequate space is not available and/or pgr is needed, Daminozide (B-Nine) 2500 ppm or Uniconazole (Sumagic) 5 ppm sprays are effective at reducing petiole stretch. Apply when leaves begin to unfurl, 2-3 successive applications can be made every 7 days if needed. A one-time 1 ppm Uniconazole drench can also be applied in place of sprays, after the first few leaves have expanded.
Lighting:
Long days encourage new foliage growth and root growth. Container-grown hostas are more susceptible to sunscald than those growing in the ground, due to higher root zone temperatures and larger swings in moisture levels. Growing containers under a 30%-50% shade cloth is recommended to prevent sunscald. The threshold for light is around 4,000 foot candles to minimize sunscald, so checking with a light meter can help to make sure your shade cloth is reducing the light to around this level.
Other Comments:
Overwintering Information
Potted hosta can be overwintered in the same manner as most other potted perennials. After applying a fungicide drench, we suggest using the following overwintering procedures based on our experience in Midwest climate:
Height:
30.0-32.0 Inches
Spread:
72.0-78.0 Inches
Scape Height:
24.0-30.0 Inches
Hardiness Zones:
3,4,5,6,7,8,9
Flower Color:
Purple shades
Foliage Color:
Blue shades
Sunlight:
Part Shade (4-6 hrs. Direct Sun) Full Shade (< 4 hrs. Direct Sun)
Water Requirements:
Average Water Needs Consistent Water Needs
Soil Quality:
Average Soil Quality Fertile Soil Quality
Soil Chemistry:
Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0)
Bloomtime:
Midsummer
Attracts Wings:
Attracts Hummingbirds
Growth Rate:
Medium
Garden Style:
Asian Patio Container Cottage Eclectic Formal Modern Woodland Shade
Other Features:
Container Cut Foliage Easy To Grow Attractive Foliage Mass Planting
Origin:
Not Native to North America
Hostas grow best in moist, well-drained, highly organic soils with a pH between 5.5 and 7.5. Sandy loam is better than clay because it provides more aeration for the roots. High-filtered or dappled sunlight is necessary for clean, healthy growth. Morning sun is tolerable and will help to intensify the leaf colors, but hot afternoon sun is usually deadly to hostas. They are most at home in shady, woodland settings and often work well as specimen or edging plants.
Especially in northern zones, hostas should be mulched with a layer of finely shredded organic material to prevent heaving in the winter. Mulch is beneficial because it retains moisture around the plant's roots, but it is also the ideal place for slugs to hide. Watch for holes in the center of the leaves. If they are present, so are slugs. Applying a slug bait in early spring when new shoots are beginning to emerge will help to reduce the slug population. After a few years when plants are firmly established, the mulch can be removed completely, which should eliminate the slug problem altogether. Also be sure to clean all hosta foliage out of the garden in early winter after the plants have gone dormant. By doing so, you will be ridding the area of the eggs of slugs and other leaf-eating insects.
Container:
Premium 1 Gallon Pot
When to Plant:
Late spring to mid summer
Finish:
8-10 weeks
Notes:
Best to bulk all summer for a full container the following spring.
Container:
Trade 1 Gallon Container
When to Plant:
Late spring to summer
Finish:
10-12 weeks; can also be finished into a Premium 1 Gallon Container in 16-20 weeks.
Notes:
Best to bulk all summer for a full container the following spring.
Container:
Premium 1 Gallon Pot
When to Plant:
Late spring to summer
Finish:
6-8 weeks
Notes:
Best to bulk all summer for sales the following spring.
Growing Temperature:
60° F, keep above freezing.
Soil PH:
5.8-6.5
EC (What is EC?):
1.5-2.0 pour through method
Fertility:
Hostas will benefit from a light application of liquid fertilizer (20-10-20 with 50 ppm nitrogen) in early spring. Since it is critical to keep all granular fertilizers far from plant crowns to avoid injury, liquid feed is safest. Alternatively, a top-dressing of slow release fertilizer may be used. Roots may rot if too much fertilizer is applied. In the fall, only a light application (if any) is necessary. Apply very little nitrogen in the fall to allow plants to go dormant.
Vernalization:
Required for 10-12 weeks at temperatures below 40° F.
Pests & Diseases:
Aphids are particularly fond of the new growth. If they feed excessively, the leaves may appear disfigured when they unfurl. Applications of Rycar, Endeavor and BotaniGard are effective at preventing aphids. Applications of Avid, Floramite, Sultan and predatory mites are effective on some varieties of hostas which are susceptible to spider mites. Mainspring, Conserve, Orius and predatory mites are effective against thrips. Slugs tend to seek out hostas. Good greenhouse sanitation before potting is the best way to prevent a slug outbreak. Mice and voles also enjoy a tasty meal of hosta roots and crowns. Prevent rodent problems by using bait or traps.
Potting & Timing:
Potting soil should be a well-drained, bark-based, soilless mix. Use a pot that corresponds with the size of the roots. Giving roots the space they need will allow plants to reach their optimum size and quality. When transplanting, it is best to spread or fan out the roots since this tends to encourage new growth. When transplanting in spring, keep hostas at 50° F for the first two weeks to promote root growth. Minimum temperatures may then be lowered to 40° F.
Moisture:
The best root development occurs when plants are allowed to dry out slightly between waterings. It is best to water early in the morning. As with all plants, it is important not to over-feed or over-water. Keep soil moist early in the growing season, but do not overwater. Later in the season, allow soil to dry out between waterings. Dormant hosta require very little water. Severe or prolonged dry conditions, on the other hand, may force hostas into dormancy and can reduce plant size the following year.
Planting Level:
Growing points or 'eyes' should be at or just below the soil surface.
PGRs/Pinching:
Providing adequate space is the best method to achieve nicely shaped hostas without stretching. If adequate space is not available and/or pgr is needed, Daminozide (B-Nine) 2500 ppm or Uniconazole (Sumagic) 5 ppm sprays are effective at reducing petiole stretch. Apply when leaves begin to unfurl, 2-3 successive applications can be made every 7 days if needed. A one-time 1 ppm Uniconazole drench can also be applied in place of sprays, after the first few leaves have expanded.
Lighting:
Long days encourage new foliage growth and root growth. Container-grown hostas are more susceptible to sunscald than those growing in the ground, due to higher root zone temperatures and larger swings in moisture levels. Growing containers under a 30%-50% shade cloth is recommended to prevent sunscald. The threshold for light is around 4,000 foot candles to minimize sunscald, so checking with a light meter can help to make sure your shade cloth is reducing the light to around this level.
Other Comments:
Overwintering Information
Potted hosta can be overwintered in the same manner as most other potted perennials. After applying a fungicide drench, we suggest using the following overwintering procedures based on our experience in Midwest climate:
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