perennial flower
Rattlesnake master
An unusual native with bold form and high pollinator diversity value.
Growing Profile
- Hardiness
- Zones 4a-9a
- Sun
- Full
- Soil
- LoamSandyClay
- Water
- Low
- Deer pressure
- Not rated No deer-resistance category is assigned yet; treat browsing risk as local and variable.
- Black walnut
- Mixed or uncertain Use as a black walnut / juglone planning cue; tolerance varies by cultivar, soil, and distance from the tree.
- Planting depth
- Set the crown at the same level it grew in the nursery pot.
- Container min
- 2+ gal (good)
- Goals
- Native plantsPollinators & wildlifeCurb appeal & color
Harvest & Use
- Window
- spherical greenish flowers in summer; yucca-like foliage
- Yield return
- 0.7-1.2 lb/plant/season
- First output
- 1-2 yrs
- Best for
- Native plantsPollinators & wildlifeCurb appeal & color
Harvest window: spherical greenish flowers in summer; yucca-like foliage. Once established, the current pound-return model uses 0.7-1.2 lb/plant/season with a harvest window of 12-28 weeks.
Plant photos
What it looks like in the garden
Use these photos to compare the plant's leaves, stems, flowers, fruit, and overall habit before you buy or plant.
Photos show a representative plant in the garden. Fruit color, size, and growth habit can vary by cultivar, season, nursery stock, and site.
Photo sources: Dr. Thomas G. Barnes, U.S. Fish and Wildlife Service / Wikimedia Commons (Public domain)
Quantitative Profile
- Pound return
- 0.7-1.2 lb/plant/season
- 10-year return
- 6.3-10.8 lb/10 yrs
- Full output
- 2-3 yrs
- Mature size
- 6-10 ft H x 1-2 ft W
- Spacing
- 0.3-1 ft in-row x 3 ft rows
- Planting depth
- Set the crown at the same level it grew in the nursery pot.
- Container min
- 2+ gal (good)
- Productive life
- 3-10 yrs
- Difficulty
- 2/5
- Reliability
- 4/5
- Data quality
- Medium profile, Medium yield confidence
Pound return is the stock-style yield metric. These are planning ranges for comparing plants, not guarantees. Cultivar, rootstock, climate, soil, pruning, pest pressure, and wildlife can move actual results.
Planting Checklist
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Right-size container with drainage
Containers / Before plantingUse a container large enough for mature roots, with open drainage holes to prevent root rot.
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Expanding container potting mix
Containers / Before plantingUse a lighter container medium instead of dense garden soil in pots and grow bags.
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Organic mulch
Soil / After plantingHold soil moisture, suppress weeds, moderate soil temperature, and protect shallow roots.
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Hand trowel
Tools / Planting dayPlant starts, herbs, flowers, bulbs, and smaller container plants at the right depth.
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Finished compost
Soil / Bed prepImprove bed structure and organic matter before planting annuals, perennials, shrubs, and trees.
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Watering wand or can
Watering / Planting dayWater new transplants gently without washing soil away from the crown or roots.
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Rabbit or deer protection
Protection / After plantingGuard young edible, native, and ornamental plants until they can tolerate browsing.
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Bypass pruners
Maintenance / First seasonMake clean cuts for harvesting, deadheading, shaping, and light pruning.
Yield curve
Estimated Pound Return
Projected annual yield ramp from establishment to full production, using the current sourced range for Rattlesnake master.
- Year 1
- 0.2-0.4 lb First-year estimate from the sourced curve.
- Year 5
- 0.7-1.2 lb
- Year 10
- 0.7-1.2 lb
- 10-year total
- 6.3-10.8 lb/10 yrs
Shaded band shows the sourced low-to-high pound-yield range. The line tracks the midpoint for quick comparison.
Method: direct pound yield from crop metric source. Annual crops assume one comparable planting per year; perennial crops ramp from first bearing to full production.
Planting Strategy
- Planting depth: Set the crown at the same level it grew in the nursery pot.
- Container minimum: 2+ gal (good). Use 2+ gal per plant, or wider mixed containers with similar water needs.
- Start with one plant when testing fit in a new bed or container.
- Use the pairing map below to choose nearby companions or compatible varieties.
Risk Factors
- Match the site first: full light, loam, sandy, clay soil, and low water.
- Use 0.3-1 ft in-row x 3 ft rows as the first spacing model; adjust for hedges, trellises, containers, or local guidance.
- Plan around mature size: 6-10 ft H x 1-2 ft W.
- Plan pollination or companion context before planting; nearby varieties can matter for fruit set.
- Native-plant matches are starting points; confirm regional nativity, straight-species versus cultivar status, and local invasive guidance.
Related Planning Guides
Comparable Plants
Companion Plants & Pairings
Plant Nearby
Native grasses and flowering forbs are more resilient and legible when planted as a matrix instead of isolated single specimens.
Use it: Use grasses as structure, repeat 3 to 5 forb species in drifts, and include spring, summer, and fall bloom windows.
Sources & Methodology
This guide combines hardiness range, light, soil, water, harvest timing, traits, supplier links, plant relationships, and quantitative planning metrics. Pairings are screened for practical garden fit.
Quantitative values use extension and botanical-reference ranges where available. For less-studied cultivars, similar crops fill gaps conservatively. Ranges are intentionally broad so the profile stays useful without pretending to be exact.
Planning sources: NC State Extension Gardener Plant ToolboxMissouri Botanical Garden Plant FinderK-State Extension Master Gardener Handbook - Herbaceous PlantsUniversity of Maryland Extension - Types of Containers for Growing VegetablesIllinois Extension - Growing Vegetables in Containers
Supplier search: Amazon. Search links are not paid placements unless explicitly marked; affiliate listings may earn a commission. Last reviewed: 2026-05-31.