The Narrowest Honeylocust, Made for Tight Streets and Yards

Street Keeper Honeylocust (Gleditsia triacanthos var. inermis 'Draves') is the slimmest honeylocust you can plant — a strictly upright, tightly columnar selection just 18 to 20 feet wide at 40 to 50 feet tall. It packs the species' famous toughness and fine, ferny green foliage into a narrow form bred specifically for boulevards, alleys, and tight side yards where a spreading shade tree would crowd the space. Thornless and casting a light, lawn-friendly dappled shade, it's clean and easy to live with, and it turns clear golden yellow in fall. Hardy to zone 4 and urban-tough, it shrugs off drought, salt, and poor soil. Whether you're lining a boulevard in St. Paul, screening a narrow lot in Plymouth, or adding vertical shade in Woodbury, Street Keeper fits where others can't.

Street Keeper Honeylocust Plant Details

Street Keeper Honeylocust Uses in Minnesota Landscapes

Narrow Boulevards and Street Trees

This is the honeylocust for tight spaces. Its strictly upright, 18–20 foot width fits boulevards, alleys, and parking strips where the typical broad honeylocust would overwhelm, while still tolerating the salt, compaction, and heat of street-side life in Minneapolis and St. Paul.

Vertical Shade for Tight Lots

At 40–50 feet tall but slim, Street Keeper delivers shade and structure on narrow lots and along property lines in close-set suburbs like Richfield or St. Louis Park, without spreading into the neighbor's yard.

Clean, Lawn-Friendly Tree

Thornless, nearly podless, and casting only a light dappled shade, it's a tidy choice that lets grass and perennials thrive right up to the trunk — ideal for a manicured yard or boulevard strip.

Best Time to Plant Street Keeper Honeylocust in Minnesota

Honeylocust is deciduous, so you have two good planting windows in the Twin Cities:

Spring (late April–May), once the ground has thawed, is excellent — the tree gets the full growing season to establish before its first winter.

Fall (September–mid-October) also works well. Plant at least six weeks before the ground freezes so roots can settle in. Avoid mid-summer planting when heat stress is highest, and never plant into frozen ground.

How to Plant Street Keeper Honeylocust

1. Dig wide, not deep — the hole should be 2–3 times the root ball width but only as deep as the ball itself. In heavy clay, dig even wider.
2. Check drainage — if water pools in the hole, break through clay hardpan or mound-plant slightly to keep roots out of standing water.
3. Backfill with the native soil mixed with 20–30% compost. Don't create a pure-compost "container" in clay.
4. Set the tree so the top of the root ball sits at or just above grade. Space trees 10–15 feet apart for a narrow boulevard row.
5. Build a 3–4 inch water basin around the root zone to direct water to the roots; flatten it before winter.
6. Mulch with 2–3 inches of shredded bark or wood chips, kept 2 inches from the trunk, and wrap the young trunk the first winter or two.

Watering Street Keeper Honeylocust in Minnesota

First Year Watering Schedule

Weeks 1–2: water every 1–2 days, deep and slow. Month 1–2: every 3–4 days. Month 3 through fall: every 5–7 days during active growth, less when rainfall is adequate. Stop watering 2–3 weeks before the ground freezes in late October so the tree can harden off for winter.

After Year One

Established Street Keeper Honeylocust is notably drought-tolerant, needing supplemental water mainly during extended dry spells (2+ weeks with no rain). Water deeply to 6–8 inches every 7–14 days during drought, and let natural rainfall do most of the work.

Will Street Keeper Honeylocust survive a Minnesota winter? Yes — it's hardy to about -30°F and well adapted to the Twin Cities.

How narrow does it stay? Just 18–20 feet wide at 40–50 feet tall — the narrowest, most strictly upright honeylocust available, purpose-bred for tight streetscapes.

Is it thorny or messy? No — it's a thornless, nearly podless selection, so there are no hazardous thorns and very little litter.

Can grass grow under it? Yes — its fine, dappled shade is lawn-friendly, letting grass and perennials thrive right up to the trunk.

You May Also Like

• Sunburst Honeylocust — a golden-foliaged thornless honeylocust with butter-yellow new growth.
• Skyline Honeylocust — an upright-pyramidal green honeylocust with a strong central leader.
• Prairie Sentinel Hackberry — a narrow columnar native shade tree for tight spaces.
• Swedish Columnar Aspen — another narrow columnar tree for fast, slim screening.

How Many Street Keeper Honeylocust Do I Need?

Street Keeper is built for rows. For a narrow boulevard or property-line planting, space trees 10–15 feet on center — the upright columns read as a rhythm without merging. A single tree needs only about 20 feet of clearance for its mature width, making it the honeylocust for spots where Skyline or Shademaster simply won't fit.

Street Keeper Honeylocust Season-by-Season in Minnesota

• Spring: Leafs out late — great for spring bulbs beneath — with small fragrant greenish flowers that quietly feed bees.
• Summer: Fine, ferny foliage on a strict column casts light, dappled shade that keeps lawns green below.
• Fall: Clear golden-yellow color; the tiny leaflets all but vanish into the grass — minimal raking.
• Winter: A tight, upright branch silhouette that sheds snow and ice cleanly and keeps its narrow profile.

At a Glance

✔ Pollinator-Friendly   ✔ Deer-Resistant   ✔ Salt-Tolerant   ✔ Drought-Tolerant

Plant It With

• Sunburst Honeylocust — golden new growth where you have room for a broader form.
• Skyline Honeylocust — the classic pyramidal honeylocust for the open part of the yard.
• Prairie Sentinel Hackberry — a narrow columnar native to alternate down the same tight strip.
• Summer Shimmer Aspen — fast, shimmering vertical companion for slim screening.

Is Street Keeper Honeylocust Right for Your Yard?

Pick Street Keeper when the space is narrow but you still need 40–50 feet of tough, salt- and drought-proof shade — boulevards, alleys, tight side yards. Its light shade keeps lawns alive beneath it and deer mostly pass it by. It's not a fit if you want a broad, spreading canopy for a big open lawn — that's Skyline's or Shademaster's job.