My Deer Garden

Is Purple Loosestrife deer resistant?

Lythrum sp.

Tall magenta loosestrife spikes
Photo by Ivar Leidus, CC BY-SA 3.0. Via Wikimedia Commons.
Occasionally damaged

Browsed where deer pressure is high. Protect it.

Rating source: Rutgers NJAES E271

About Purple Loosestrife

One of the most damaging wetland invasives in North America, capable of replacing entire marsh plant communities, and banned across most states. A single plant produces over a million seeds. Do not plant it under any circumstances, whatever the deer rating says.

Soil and care

Soil pH
5.5 to 7.5
Drainage
Tolerates wet feet
Water
High
Spacing
24 to 35 in apart
Growth rate
Fast
Maintenance
High

Deer-resistant alternatives to Purple Loosestrife

Same plant type, hardy in the same zones, but rated better on the Rutgers scale. If Purple Loosestrife keeps getting eaten, these go in the same spot.

Similar to Purple Loosestrife

Other perennials with the same deer rating.

Protecting Purple Loosestrife

Whether this survives comes down to local pressure, so it is worth knowing the options before it gets browsed rather than after.

Where Purple Loosestrife grows

Hardy across most of these 51 states on zone range alone. Mountain and coastal areas sit outside the ranges used here, so check your own zone before ordering.

Browse from here

Every list Purple Loosestrife belongs to.

Hardy in these zones

Common questions about Purple Loosestrife

Is Purple Loosestrife deer resistant?
Purple Loosestrife (Lythrum sp.) is rated Occasionally Severely Damaged on the Rutgers NJAES four-tier scale. Browsed where deer pressure is high. Protect it.
What hardiness zones does Purple Loosestrife grow in?
Purple Loosestrife is hardy in USDA zones 3 to 9. Outside that range it will either not survive winter or will struggle with summer heat. That is the range across the genus, so a named species or cultivar may be narrower.
Does Purple Loosestrife grow in shade?
No. Purple Loosestrife wants full sun and will grow thin and flop in shade.
Is Purple Loosestrife invasive?
Purple Loosestrife is listed as invasive or restricted in CT, MA, ME, MI, MN, NH, NY, OH, PA, VT, WI, IL, IN, IA, WA, OR, CO, MO. Deer leaving it alone is not a reason to plant it. Check your own state before buying.