PLANTING
& DESIGN. — Planting & Landscape Design, Lakeville MN — Zone 4b/5a — Lofton Landscaping, serving Lakeville, Savage, Prior Lake, Burnsville, Apple Valley, Rosemount, Farmington and Eagan.

The south metro sits right on the 4b/5a line, and a plant rated for zone 5b will look fine for two or three mild years and then die in a single bad winter. That's the most common way homeowners lose money on landscaping around here — a plant that was never going to make it, sold as if it would.

We spec to the colder rating rather than the optimistic one. It rules some things out, and it means the bed you pay for is still the bed you have in five years. Where a customer wants something marginal we'll plant it, but we'll say plainly that it's a gamble rather than letting them find out in April.

Exposure matters as much as the rating. A shrub on a sheltered east wall survives conditions that kill the same shrub on an open, wind-scoured Rosemount lot. We plan around the actual site, not the map.

Planting too deep is the single most common killer of new trees and shrubs, and it's invisible for years while the plant slowly declines. The root flare — the point where the trunk widens into the roots — has to sit at or slightly above finished grade. Buried, it holds moisture against the bark and rots.

The hole is dug wide rather than deep. Roots spread laterally through the top foot of soil, so a wide, shallow, roughened-sided hole gives them somewhere to go; a narrow deep one just makes a pot out of the surrounding soil.

Container stock almost always comes root-bound, circling the inside of the pot. Those roots don't spontaneously straighten out once planted — they keep circling and eventually girdle the plant. They get scored and teased apart before the plant goes in. It looks brutal and it's the difference between establishing and stalling.

The other reliable failure is spacing. Nursery stock is small and beds look sparse when they're planted correctly, so the temptation is to fill the gaps — and four years later the whole bed is a crowded mass with plants shading each other out and shrubs pressed against the siding.

We space to mature size and use annuals or fast perennials to fill the gaps in the meantime. It requires a bit of patience in year one and it's the reason well-planted beds look better every year rather than worse.

Structure comes first: a few larger anchors that hold the shape through winter, then layers around them. In a climate where you're looking at the bed through snow for four months, what it does in January matters as much as what it does in June.