Helianthus Lemon Max

Undaunted® Lemon Max Perennial Sunflower

4-5 feet tall x 4-5 feet wide. Lemon Max is a sensational bloomer with an explosion of huge, clear yellow August daisies. A big strapping plant, give Lemon Max plenty of room to grow. Well-suited to any type of soil, including clay. Well suited to habitat gardens--birds will relish the seeds and native bees are fond of the nectar-rich sunflowers. Discovered by Lauren Ogden in her Ft. Collins garden. A Plant Select winner.
Zones 4 - 8
Advantages
Easy to Grow
Good for Cut Flowers
Deer Resistant
Attract Butterflies
Attract Birds
Bee Friendly
Rabbit Resistant
Native
Low Maintenance
Great for Mass Plantings
Multiplies / Naturalizes
Adds Texture
Light Requirements
Full Sun
Annual Rainfall 10 to 20", 20 to 30", 30 to 40" (with care)
Mature Plant Size 4-5 ft. tall , 48-60" wide (4-5 feet)
Bloom TimeEarly summer to fall
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Size Plant - 5" Pot
SKUHC015333

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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$10.99
Per Plant - 5" Pot
Out of stock
SKU
HC015333

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Details
4-5 feet tall x 4-5 feet wide. Lemon Max is a sensational bloomer with an explosion of huge, clear yellow daisies in August. A big strapping plant to about 5 ft. in height and of equal girth, give ‘Lemon Max’ plenty of room to grow; it's especially well-suited to meadows and habitat gardens. While at home in any soil type, the plant loves clay. Birds will relish the seeds and the native bees are especially fond of these nectar-rich sunflowers. A garden hybrid discovered by Lauren Springer Ogden in her Fort Collins garden. A Plant Select winner. (Cutting propagated.)
More Information
SKU
HC015333
Ships To Canada
No
Common Name
Undaunted® Lemon Max Perennial Sunflower
Botanical Name
Helianthus ‘PUND03S’
Zones
4, 5, 6, 7, 8
Light Requirements
Full Sun
Flower Color
Yellow
Height
60 inches
Mature Height
4-5 ft. tall
Mature Spread
48-60" wide (4-5 feet)
Bloom Time
Early - Mid Summer, Mid - Late Summer, Early - Mid Fall
Bloom Time
Early summer to fall
Ships As
Potted Plant
Planting Time
Spring / Summer, Fall
Soil Type
Sandy Soil, Clay Soil, Average Soil, Compost Enriched Garden Loam Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20", 20 to 30", 30 to 40" (with care)
Advantages
Easy to Grow, Good for Cut Flowers, Deer Resistant, Attract Butterflies, Attract Birds, Bee Friendly, Rabbit Resistant, Native, Low Maintenance, Great for Mass Plantings, Multiplies / Naturalizes, Adds Texture
Awards
Plant Select
Ideal Region
Anywhere In The US, Suitable Above 7000 ft
Native To
North America
Item Package Size
Plant - 5" Pot
Planting Guides

Tips On Growing Helianthus (Sunflower)

Helianthus (Sunflower) are showy late summer/early fall blooming native wildflowers that are deer and rabbit resistant. There are both annual and perennials sunflower varieties.

Preferred growing conditions:

  • Both annual and perennial Sunflower varieties grow easily in all types of soil including clay.
  • Plant in full, hot sun.
  • Sunflowers do not need to be mulched, but when planted in a garden with other plants that are mulched, they amenable to most common types of mulch including crushed gravel in xeriscapes.
  • Perennials like Helianthus maximiliana and its hybrids are xeric (waterwise). After becoming well established by their second growing season they do best with deep but infrequent watering. Too much water makes them tall and floppy; it’s best to grow them on the dry side.
  • Annual types need regular irrigation when there has been no rain.
  • Perennial types just need a few handfuls of compost and Yum Yum Mix in the planting hole to get them off to a good start.
  • Annual types benefit from more extensive soil preparation and will grow more vigorously when the soil has rototilled or dug to a depth of 8 to 12 inches and enriched with ample compost and Yum Yum Mix.

Special comments:

  • Undaunted® Lemon Max hybrid perennial sunflower sets a lot of seed. If re-seeding is not desirable, it should be deadheaded shortly after blooming has finished to reduce the number of volunteer seedlings.
  • Maximilian sunflower varieties are very vigorous growers that spread via underground roots. They should not be planted in flower beds with good soil as they will crowd out their neighbors; they are best planted in poor soil sites along fences, empty walls and other peripheral areas where their large size is an advantage.
  • Sunflower seeds are a favorite food of many songbirds, so don't deadhead the plants after blooming.

Garden Care:

  • Leave perennial plants standing over the winter and cut them back hard to a height of 1-2" in early to mid-spring.
  • Perennial varieties are easily divided in the spring to propagate additional plants or keep them in bounds if they grow too wide.
  • The seed of annual varieties should be planted when the soil begins to warm up in late spring. Sow seeds at the same time when planting corn in your area.

View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
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