Caledonia Garden Centre — zone 5 and 6 gardening guides

137 Field-tested guides
30+ Years on the same zone 5 lot
12,000+ Readers across zones 3–8
-20 F Average winter low we design for
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Eight guides, each a doorway into a corner of the garden. Pick the one that matches the problem in front of you.

16 guides

Climbing plants: vines for trellises, fences, walls, and pots

Climbing plants for trellises, fences, and pots: flowering vines, low-maintenance and non-invasive picks, indoor climbers, and deer-resistant options.

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18 guides

Container gardening: growing more in pots and tight spaces

Container gardening for small spaces and renters: potatoes, rhubarb, shrubs, roses, succulents, water gardens, and perennials grown in pots.

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12 guides

Garden tools: pruning gear and soil basics that actually matter

Garden tools and soil basics: pruning tools for apple, grape, palm, and bonsai, long-handled options, and how garden soil differs from potting mix.

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16 guides

Ornamental grasses: a practical guide for cold-winter gardens

Ornamental grasses for cold-winter gardens: full-sun and shade varieties, deer-resistant picks, dwarf and tall types, and when to cut them back.

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25 guides

Perennial flowers: a complete guide to plants that return each year

Perennial flowers that return every year: shade-tolerant varieties, zone 5 and 6 picks, deer-resistant options, and long-blooming garden choices.

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19 guides

Plant care tips: fixing the problems that stall common plants

Plant care tips for common problems: overwintering tomatoes and peppers, root-bound houseplants, and why roses, lavender, and hibiscus won't bloom.

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12 guides

Raised bed gardening: build, fill, and plant beds that last

Raised bed gardening for beginners: building and filling beds, growing potatoes and tomatoes, fencing, tools, lasagna layering, and the trade-offs.

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19 guides

Shade plants: low-light picks that hold up year after year

Shade plants that thrive in low light: deer-resistant varieties, evergreens for shade, potted porch options, ground covers, and dry-shade survivors.

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How we work

What "field-tested" actually means here

Site

One zone 5b lot on a former pasture, sandy loam over clay, exposed west wind, mature sugar maples on the north fence. USDA hardiness zone 5a at the lowest corner, 5b on the slope, 6a against the house wall.

Method

New plants go in the ground in spring only, get one full season of establishment watering, then are judged on what they do in years two and three. Plants that need heroic effort to survive a normal winter are moved on.

Standards

Cross-checked against Missouri Botanical Garden Plant Finder, USDA NRCS Plants Database, the Royal Horticultural Society plant selector, and extension publications from the universities of Minnesota, Cornell, Penn State, and Oregon State.

Latest dispatches

Newest from the trial bed

Fresh guides, updated picks, and the occasional postmortem on a plant that did not make it.

climbing plants

Climber plants for a fence: best vines and how to support them

The best climber plants for a fence are clematis, climbing hydrangea, honeysuckle, and roses. Add wires to a board fence so twining stems can grip.

21 Jun 2026
climbing plants

Climbing flowering plants for a trellis: best picks for zone 5

Clematis, climbing roses, honeysuckle, and sweet pea are the best climbing flowering plants for a trellis. Match the climbing method to the support.

21 Jun 2026
climbing plants

Climbing honeysuckle plants: which to grow and which to avoid

Climbing honeysuckle plants twine up a support and bloom fragrant tubular flowers. Choose native trumpet honeysuckle and avoid the invasive Asian types.

21 Jun 2026
climbing plants

Climbing plants for full sun: vines that thrive in hot, bright spots

Climbing plants for full sun include clematis, climbing roses, honeysuckle, trumpet vine, and wisteria. Keep the roots cool and water deeply in heat.

21 Jun 2026
climbing plants

Climbing plants for a chain link fence: vines that grip the mesh

Climbing plants for a chain link fence: clematis, honeysuckle, climbing hydrangea, and annual vines that weave through the open mesh.

21 Jun 2026
climbing plants

Climbing plants for pergolas: vines that build a living roof

The best climbing plants for pergolas are wisteria, climbing roses, grapevines, clematis, and honeysuckle. Match the vine's weight to a sturdy structure.

21 Jun 2026
climbing plants

Climbing plants for pots: vines that thrive in containers

The best climbing plants for pots are clematis, annual vines, and compact climbing roses. Use a large container, an obelisk, and steady water and feeding.

21 Jun 2026
climbing plants

Climbing rose plant seeds: how to grow climbing roses from seed

To grow climbing rose plant seeds, collect seeds from hips, cold-stratify them for several weeks, then sow. Germination is slow and seedlings vary.

21 Jun 2026
Why this matters

The numbers behind a working garden

1 in 3

bites of food in the North American diet depend on animal pollination, with bees doing the bulk of the work (Pollinator Partnership).

-20 F

is the average annual extreme minimum for USDA zone 5b, the lower end of the band our trial bed sits in (2023 USDA Plant Hardiness Zone Map).

7,500+

plants have been grown and recorded at the Missouri Botanical Garden Kemper Center, the data backbone of our perennial recommendations.

3-8

is the typical hardiness range for the perennials we recommend most often, giving at least two zones of margin for climate variability.

Hands in the soil

Who writes this

Two working gardeners, one shared trial bed, eight years of notes. No staff writers, no AI-authored copy.

David Chen

David Chen

David spent six years working at a retail nursery before turning his attention to writing about plants. His first obsession was ornamental grasses, a group of plants he kept misidentifying the first two summers. Later he got into climbing plants, mostly because a neighbor's wisteria was eating his fence. He now gardens in a zone 5b lot with heavy clay soil and a 12-foot deep spruce windbreak, which means he has strong opinions about soil amendments and root competition. He writes about plant problems because most garden advice starts from the assumption that nothing has gone wrong yet. David served on the perennial plant evaluation committee at the Chicago Botanic Garden for four years and contributes trial-bed notes to the Royal Horticultural Society community science program.

Margaret Sinclair

Margaret Sinclair

Margaret has looked after the same zone 5b perennial beds for more than thirty years. She started with a single raised bed along a south-facing wall in 1991, lost half of it to a late-October freeze her first season, and kept going. She grows everything from hostas under old sugar maples to clematis in pots on a shaded porch, and her trial bed sits in USDA zone 5a at the lowest corner and 6a against the house wall (2023 USDA Plant Hardiness Zone Map). Her approach leans practical: if a plant cannot survive a zone 5 winter without heroic effort, she usually finds something else. She writes about what worked, what died, and what surprised her enough to try again. Margaret serves as a Master Gardener volunteer with the state extension service and contributes trial-bed data to the Cornell University Garden-Based Learning community science program.