Prepare the bed before planting: check drainage, test the soil, and make only the changes the site and test results call for. That matters especially for perennials, which may occupy the same ground for years and can be difficult to move or correct later.
1. Choose a site that suits the plants
Start with the perennial’s light and soil needs, then assess the bed’s drainage and fertility. Plants differ in how much moisture and fertility they tolerate, so there is no single soil recipe for every perennial. Plan for those conditions before planting rather than assuming they can be fixed easily afterward. Iowa State University Extension and Outreach and University of Maryland Extension offer guidance on evaluating and preparing planting areas.
As an Amazon Associate I earn from qualifying purchases.
2. Check how quickly the soil drains
A simple percolation check can flag a bed that stays too wet for many perennials. Iowa State Extension’s 2024 guidance describes this method:
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →- Dig a hole at least 12 inches deep and 4–12 inches wide.
- Fill it with water and let the soil drain once to become saturated.
- Fill the hole again and measure how far the water level drops after 15 minutes.
- Multiply the measured drop by four to estimate the drainage rate in inches per hour.
Iowa State describes 1–3 inches per hour as desirable for most plants and a rate below 1 inch per hour as poor drainage. These are the thresholds in its guidance, not a guarantee that every species will thrive at those rates. If the bed drains poorly, consider whether the site can be improved or whether plants suited to wet conditions are a better choice. For a small planting area, a raised bed may also be an option. See Iowa State’s drainage recommendations and Virginia Cooperative Extension’s guidance on landscape planting beds.
#1 Best Overall
- 524 PREMIUM SEEDS – BRILLIANT COLOR, FAST GROWTH: This large pack includes 524 USA-packed, high-germination Zinnia Dahlia seeds that bloom into stunning double flowers in red, pink, orange, white, and more. Easy to grow, beginner-friendly, and perfect for bouquets, borders, and containers. Blooms in just weeks and lasts all summer!
- A TRUE GARDEN ARISTOCRAT WITH STRIKING FORM: Zinnia Dahlia is a radiant floral showstopper, beloved for its uniquely bold shape and opulent floral structure. Each bloom evokes a sense of floral nobility with plush, layered petals arranged in a near-geometric sphere. This variety of zinnia has earned its place among the top ten most cherished garden flowers, widely appreciated across the United States and beyond.
- RED FOR EXCEPTIONAL COLOR, SHAPE, AND VARIETY: Decades of horticultural development have resulted in this magnificent line of Zinnia Dahlia seeds. Carefully selected to represent the best of modern breeding, this variety offers a visual spectacle of rich tones and impressive structure. The blooms are large and fully double, featuring countless tightly arranged petals that radiate with saturated color. Each flower opens like a celebration—vivid, elegant, and unforgettable.
- EXPLOSION OF COLOR IN EVERY PLANT: This seed mix produces a stunning range of shades including snow white, coral, salmon pink, lavender, purple, bright orange, cream-yellow, cherry red, scarlet, deep crimson, and plum. Two-toned blooms with dramatic edging offer even more visual interest. Whether planted in clusters or as a standout specimen, Zinnia Dahlia puts on a breathtaking display all summer long.
- LARGE PACK FOR FULL GARDEN COVERAGE: Each seed pack includes approximately 524 premium Zinnia Dahlia seeds, giving you enough to plant a wide area—ideal for garden borders, flower beds, or large landscape designs. Enjoy continuous blooms and a high return on planting. This makes them an ideal value choice for mass planting or sharing with friends and family.
3. Test soil before adding lime or fertilizer
A soil test helps identify pH and nutrient needs so you can amend the bed deliberately rather than by guesswork. Mississippi State Extension advises not to add lime without a soil test; lime is not a general-purpose soil conditioner. Follow the sampling directions of the lab you use. Purdue Extension’s 2024 guidance describes collecting small cores from several representative places in the garden, at a depth of 6–8 inches, then mixing them together for a sample. Mississippi State Extension and Purdue Extension’s soil-sampling guidance explain these steps.
4. Add organic matter when the bed needs it
Compost and other organic matter can help improve soil structure and water-holding characteristics. Purdue Extension quotes retired consumer horticulture specialist Rosie Lerner: “Adding organic matter will help improve soil drainage and water-holding capacity, and loosen up heavy soils.” The amount to incorporate is not universal; extension recommendations vary with context:
Rank #2
- 100% Pure, Non-GMO Seeds - No fillers, favorites only! Includes 19 easy-to-grow species: Siberian Wallflower, Shasta Daisy, Lance Leaf Coreopsis, Sweet William, Foxglove, Purple Coneflower, Blanket Flower, Blue Flax, Perennial Lupine, Mexican Hat, Gloriosa Daisy, Black Eyed Susan, Candytuft, Gayfeather/Blazing Star, Maltese Cross
- Attracts Pollinators - With up to 1,000 square feet of ground cover, this non-GMO seed mix is sure to bring the bugs and birds to your yard! Easily attract bees, butterflies, and hummingbirds to pollinate blooms.
- Perfect for Zones 3-10 - This bulk outdoor mix is all perennial and suitable for all USDA hardiness zones, 3-10. These animal resistant, low-maintenance varieties prefer full sun and will produce mixed color blooms all summer through fall.
- Give the Gift of Beauty - Flower seeds are a gorgeous, eco-friendly gift that can provide lasting beauty outside your home for years to come! Perfect for birthdays, Mothers' and Fathers' Days, weddings, baby and bridal showers, and so much more, no matter where you live.
- High Germination - Eden Brother seeds are fresh, 100% pure, high germination, and non-GMO. Always. Our germination rates far exceed industry standards when planted according to instructions.
| Guidance | Recommended amount and context |
|---|---|
| Iowa State Extension | 2–4 inches of compost worked into the top 6–12 inches as part of its drainage-improvement guidance. |
| University of Maryland Extension | About 1–2 inches when preparing a flower bed. |
| Mississippi State Extension | 3–4 inches as a general perennial-bed recommendation. |
These are context-specific recommendations, not a single rate to combine or apply automatically. Consider the bed’s condition and the local guidance that fits it. Use mature compost suitable for garden use.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
5. Work soil only when it is workable
Do not dig or till soil when it is wet; working it then can damage its structure and promote compaction. Avoid repeated or excessive rototilling, which Iowa State warns can break down soil aggregates. When incorporating compost, loosen the bed only as much as needed. Virginia Cooperative Extension also cautions against using amended soil as backfill around a root ball, since it may interfere with water movement; use the excavated soil for backfill. See Iowa State’s soil guidance and Virginia Cooperative Extension’s planting guidance.
Rank #3
- Fragrant Blooms: English Lavender seeds to plant of Lavandula angustifolia produce purple flower spikes on slender green stems; late spring–summer color with vigorous growth—ideal for fragrant flowers and classic herbs borders. Common name: English Lavender; Scientific name: Lavandula angustifolia
- Simple Sowing: For best results, cold stratify, then sow 1/4 inch deep; growth shows in 14–30 days at 65+°F—great english lavender seeds for planting with reliable starts for your Outdoor & Indoor herb garden
- Hardy Perennial: Common lavender heirloom seeds forms upright, shrub-like plants 20–24 inches tall; space 18 inches; dependable in USDA zones 3–9—perfect english lavender perennial seeds and perennials seeds for long-term gardens.
- Low-Maintenance Care: Thrives in full sun and light, dry, sandy, well-drained soil; low watering—avoid water-logging; resilient, non-GMO english lavender plant for drought tolerant plants and low-effort landscapes.
- Versatile Uses: Aromatic herb for sachets, potpourri, essential oils, and soothing aromatherapy; traditional medicinal qualities — english lavender seeds heirloom suited to lavender herb, fresh herbs or dried herbs and medicinal herb seeds projects.
6. Choose planting time for the species and location
Fall planting dates are local, not universal. Iowa State’s guidance for Iowa says container-grown perennials can be planted in spring or early fall; its typical fall window is late August through September, with at least 4–6 weeks before the ground freezes for establishment. Maryland Extension distinguishes by bloom season: spring-flowering perennials are planted in late summer or early fall, while late-summer- or fall-flowering perennials are planted in spring. Check local extension recommendations and the plant’s own requirements rather than applying Iowa’s calendar elsewhere. Iowa State’s perennial planting guidance and Maryland Extension’s guidance provide regional context.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.7. Plant at the right depth, water, and mulch
For container-grown perennials, Iowa State advises setting the plant at the same soil depth it had in its pot. Backfill with the excavated soil, water after planting, and place 3–4 inches of mulch around the base to conserve moisture and suppress weeds. Most perennials do not need starter fertilizer; use a soil-test recommendation if nutrients need to be added. Iowa State’s planting instructions cover these steps.
Quick Recap
Best Value
- PREMIUM VARIETY: 24 perennial wildflowers seeds; High germination rate with non-GMO wild flower seeds; Creates stunning garden flowers with bold colors and textures; Perfect for butterfly garden seeds and pollinator seed mix
- EASY GROWING SUCCESS: Plant seeds directly in your outdoor gardening spaces; Includes spring flower seeds through fall flower varieties; Perennial flower seeds packets designed for beginners; Creates continuous blooms year after year
- BULK VALUE PACKAGE: Contains 90,000+ seeds (3oz) of wild flowers seeds mix; Perfect for meadows or cottage-style beds; Economical bulk wildflower seeds for large and small projects; Drought tolerant wildflower seeds for natural growth
- BIODIVERSITY BOOST: Attracts bees, butterflies, and birds to your garden; Improves soil health naturally; Features popular varieties like Purple Coneflower, Black Eyed Susan, and California Poppy; Creates a thriving pollinator garden
- COMPLETE GROWING GUIDE: Detailed instructions for successful germination; Transform gardens, meadows, or containers with these flower seeds; Includes perennial seeds for planting outdoors; Creates a continuous display of wildflower beauty
Rank #4
- Easy-Growing Wildflowers: This Early-Blooming, Carefree Wildflower Seeds Mix Includes 14 Of North America’s Most Beautiful Wildflower Varieties; This Gorgeous Blend Will Quickly Delight Pollinators And People Alike
- Pollinator-Friendly: Bees And Butterflies Will Flock To The Colorful Buffet Of Flowers; Good For Your Garden And For The Environment; The Bulk Seed Bag Contains Over A Dozen Wildflower Favorites In One: Cornflower, Zinnia Elegans, And More
- 25,000 NON-GMO Seeds: Easy-To-Sow Perennial Flower Seeds Mix Covers Up To 1,000 Square Feet And Is Ideal For Most Soil Types; Select A Sunny Area To Scatter The Seed Outdoors For Planting After Danger Of Heavy Frost
- Burpee Seeds Grow: Burpee Offers The Highest Quality, NON-GMO Seeds Hand-Picked By Expert Horticulturalists For Growing In The Home Garden; Burpee Has Been Loved By Gardens And Trusted By Gardeners For Over 140 Years
- Since 1876: Generations Of Customers Have Trusted Burpee To Deliver The Highest Quality Products And Service; Gardeners Rely On Burpee For Accurate Plant Information And How-To Tips That Make Gardening Easier And More Successful; Let’s Grow Together
Before you plant
- Match the site’s light, drainage, and fertility to the perennial.
- Test drainage and use the result to decide whether to improve the site or choose plants adapted to it.
- Get a soil test before applying lime or fertilizer.
- Choose an organic-matter amount appropriate to the bed and the relevant extension guidance.
- Wait until soil is workable, avoid excessive tillage, and follow local and species-specific planting timing.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
