Simpson's Stopper, Simpson Stopper, Twinberry
Myrcianthes fragrans

Family: Myrtaceae (mir-TAY-see-ee) (Info)
Genus: Myrcianthes (meer-see-ANTH-us) (Info)
Species: fragrans (FRAY-granz) (Info)

Category:

Trees

Tropicals and Tender Perennials

Height:

12-15 ft. (3.6-4.7 m)

15-20 ft. (4.7-6 m)

20-30 ft. (6-9 m)

Spacing:

24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Hardiness:

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade

Partial to Full Shade

Full Shade

Danger:

N/A

Bloom Color:

White/Near White

Bloom Time:

Late Spring/Early Summer

Mid Summer

Foliage:

Evergreen

Other details:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds

Regional

This plant has been said to grow in the following regions:

Anniston, Alabama

Arcadia, Florida

Cape Coral, Florida

Clearwater, Florida

Deland, Florida

Fort Lauderdale, Florida

Fort Myers, Florida

Groveland, Florida

Hobe Sound, Florida (2 reports)

Hollywood, Florida

Homestead, Florida

Jacksonville, Florida

Kissimmee, Florida

Largo, Florida

Lutz, Florida

Melbourne, Florida

Merritt Island, Florida

Naples, Florida

North Palm Beach, Florida

Oldsmar, Florida

Oviedo, Florida

Pompano Beach, Florida (3 reports)

Port Charlotte, Florida

Port Saint Lucie, Florida

Sarasota, Florida

Spring Hill, Florida

Tampa, Florida

Trenton, Florida

West Palm Beach, Florida (2 reports)

Winter Haven, Florida

Winter Park, Florida

Savannah, Georgia

Centreville, Maryland

Ladys Island, South Carolina

Austin, Texas

Victoria, Texas

show all

Gardeners' Notes:

8
positives
0
neutrals
0
negatives
RatingContent
Positive

On May 27, 2015, longjonsilverz from Centreville, MD wrote:

I gave this one a try here in Eastern Maryland (zone 7) after finding a cheap small one for sale. I expected an average winter here to kill it and then it ended up being the coldest February in history for this area. About 8 nights were below 10F and about 5 were consecutive. Lowest temps were 4F on back to back nights. The leaves remained evergreen through January with nothing below 15F, but dropped when it got colder in Feb. By the time spring arrived it had completely died above ground, but to my surprise it began to regrow from below the mulch and recover. Therefore I can safely say that these are definitely much hardier than usually given credit for. The smell of the flowers is great and they seem to be easy to grow.

Positive

On Mar 8, 2015, giegertree from Savannah, GA wrote:

This plant is definitely winter hardy into Zone 8b. It's come through winters with lows into the upper teens and low twenties without problems at all.

Positive

On Aug 4, 2013, susan0 from North Port, FL (Zone 10a) wrote:

Simpson has been in my front yard for 3 years, and I've been trimming it into a tree, about 6 ft tall. Up until about a week ago, it has been gorgeous. This year it was loaded with flowers, and subsequently, berries.
Recently the branches sagged when we had heavy rain. I thought Simpson would come back on its own, and it did somewhat. However when the berries continued to grow, the limbs sagged again, so yesterday I trimmed many small branches that were excess or crossing, thinking the reduction in weight would allow the remaining main branches to come back up.
This morning, three good-size branches were broken off the tree -- on the ground. Branches have never broken off before and I wonder if yesterday's trimming weakened instead of strengthened the tree. Any tips on exac... read more

Positive

On Jun 3, 2011, moresun from Arcadia, FL wrote:

When you first plant it ,do not over water... After 3 months it had flowers. Great plant..

Positive

On Mar 29, 2010, pgcarroll from Belleair, FL (Zone 9b) wrote:

Technically, this is a "Simpson Stopper," not a "Simpson's Stopper." That aside, ours is a very manageable size and is easy to keep in bounds. It flowers regularly and has no pest problems whatsoever.

Positive

On Jun 25, 2008, Bartramsgarden from Trenton, FL wrote:

I have a zone 8b garden in north Florida near Gainesville. Two years ago I planted two Simpson's Stoppers by my carport under high shade. I watered then a little for a month or two, then proceeded to ignore them. They did not grow much the first year, but have grown close to 2 feet in the last year after establishing a root system. We had a very cold winter last year, with temperatures falling to 16 degrees F (on an accurate thermometer less than 10 feet away from the plants), and they were untouched. No flowers yet, but I'm still hopeful.

As a sidenote, they were planted adjacent to some existing boxwoods and the location has provided me with numerous opportunities to compare the two plants. I must say that I much prefer the look, feel and graceful habit of the stopper! Th... read more

Positive

On Jan 29, 2005, arielsadmirer from Margate, FL (Zone 10a) wrote:

Simpson's Stopper is native to South Florida, the Keys and the Caribbean. This flowering and fruiting stopper is a member of the Myrtle family. It makes an ideal landscaping plant that needs little care. It is a dependable bloomer, as well as a favored nectar and fruit sources for many animals.

Its aromatic blooms appear regularly throughout the year. Butterflies and other nectar seeking insects are attracted to the flowers. The showy flowers are small, white powder puffs. They appear in masses that resemble foam.

Small, reddish-orange fruits follow. These edible fruits have a sweet, citrus-like flavor. Mockingbirds and other fruit eating birds relish therse berries. The name stopper refers to the traditional use of the fruit and bark as an anti-diarrheal.... read more

Positive

On Jun 17, 2004, TamiMcNally from Lake Placid, FL (Zone 9b) wrote:

Slow grower

Produces orange fruit in the fall that attracts birds.