Underused native Plants

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Underused Native Plants for Landscapes

Florida’s Plant Palette

• Florida is home to 400 bryophytes, 175 pteridophytes, 20 gymnosperms, and 4,100 angiosperms.

• About 3,200 species are considered native, of which 230 species or infraspecies are endemic to Florida and many others are nearly endemic.

• Currently, nurseries affiliated with FANN are listing for propagation

• 93 canopy trees

• 125 non-canopy trees

• 12 palms

• 205 shrubs

• 14 ferns

• 65 graminoids

• 265 wildflowers

Total Considered

1. A grand total of: 779 species

2. Leaves out ~2,500 species

3. Ignores a great many species listed by FANN, but unavailable

Leads to a Paradox

• A great many are commercially nonviable

• Restricted growing requirements

• Restricted life history qualities

• Lack of appeal

• Lack of habitat value

• However, too many are largely ignored

• Far improved since I first arrived in 1987

• Still far behind where it could be

Trees

Silky Camelia –

Stewartia malacodendron

-Naturally found throughout much of the central to western Panhandle

-Occurs primarily as an understory tree in deciduous woodlands.

-Deciduous, 30-40’ tall at maturity

-Very showy

-Very irregularly offered; currently by 1 nursery in a very small size

Common Serviceberry Amelanchier arborea

- Another small deciduous tree native to deciduous woodland habitats in central and western Panhandle

- In Florida, rarely taller than 20-25 feet

- Very showy AND an exceptional wildlife plant

- Very rarely offered; 1 FANN member

Haws – Crataegus spp.

• Of the 10->20 native species, only ~3 are routinely offered.

• C. flava

• C. marshallii

• C. aestivalis

• A great many other species warrant attention

• C. crus-galli – Cockspur haw

• C. spathulata – Littlehip haw

• C. viridis – Green haw

• None of these are currently propagated

Cockspur haw

•-Occurs throughout north and north-central Florida

•-Adaptable to a wide variety of soil/moisture conditions

•-Deciduous; 20-30 feet at maturity

•-Wonderful wildlife plant, host to gray hairstreak, viceroy, redspotted purple butterflies as well as the eggar moth.

Littlehip haw

• Found only in 5 Florida counties in the central Panhandle.

• Occurs in the understory of deciduous woodlands

• Requires some protection from summer direct sun

• Extremely showy and superb wildlife plant – same host plant value, but ideal for songbirds

Green haw

• Occurs throughout the Panhandle and north Peninsular Florida

• Commonly found in bottomlands, but very adaptable to traditional landscape conditions

• 15-20 feet tall, deciduous

• Same wildlife values

Chinquapin Castanea pumila

• Widely distributed in north Florida; scattered in northcentral Florida

• May reach 20-30 feet if grown as a tree

• Adaptable to sun and soils

• Uncommonly offered by FANN members

Bigleaf Snowbell Styrax grandifolius

• Distributed throughout the Panhandle

• Deciduous tree reaching 15-20 feet at maturity

• Adaptable, found naturally in mesic deciduous forests

• Showy flowers attract pollinators

Shrubs

Mapleleaf viburnum Viburnum acerifolium

• Naturally occurring only in the western Panhandle

• Deciduous shrub that may reach 6 feet tall at maturity

• Understory plant that does well in partial shade and average soils

• Important wildlife plant

• Not offered curently

Rusty viburnum Viburnum rufidulum

• Occurs throughout the Panhandle and north Florida.

• Deciduous; may reach 15-20 feet at maturity.

• Adaptable; understory shrub in upland wooded habitats.

• Excellent wildlife plant; fall color

• Infrequently offered by FANN nurseries

Grasses

Black-seeded needlegrass Piptochaetium avenaceum & avenacioides

• Occurs throughout north and central Florida

• Perennial bunch grasses that are quite similar in appearance

• P. avenaceum is most common in sandy open uplands (e.g. sandhills) while P avenacioides occurs in open woodlands (hammock openings)

• Flower stalks up to 3-4 feet, needlelike leaves, black seedheads

• P. avenaceum currently not listed in FANN, P. avenacioides uncommonly

Splitbeard bluestem Andropogon ternarius

• Perennial bunchgrass

• May reach 3 feet tall when in flower/seed

• Typical blue-green foliage; very showy silvery white seed heads

• Adaptable; most common in welldrained open sandy habitats

• Fall seeding; seeds beneficial to songbirds.

• Host for several grass skippers

Little bluestem Schizachrium scoparium

• Some “shuffling” seems to be the case for this grass in Florida; Schizachrium spp. occurs statewide in its various forms.

• Bunch grass characterized by its chalky blue foliage

• Occurs widely in well-drained open habitats.

• Attains height of 1-2 feet; flower stalks to 3-4 feet.

• Important prairie/meadow grass

Toothache grass Ctenium aromaticum

• Occurs throughout north and central Florida.

• Most common in seasonally moist open habitats

• Bunch grass with nondescript foliage; producing an interesting comb-like flower/seedhead in late summer.

• Host for several grass skippers.

Wildflowers

“True asters” Symphyotricum spp.

• Symphyotrichum asters are some of the most important wildflowers for pollinators and, to a lesser extent, for seed-eating birds. They also serve as host plants

• Of the 28 species reported to occur naturally in Florida, only 12 are listed on the FANN site and, of these, only 7 are listed by more than 1 nursery. Five are listed by only 1 nursery – I suspect from my plants initially.

Some of the best that aren’t currently being regularly propagated

1. S. laeve 2. S. patens 3. S. concolor 4. S. shortii
5. S. georgianum 6. S. walteri
7. S. adnatum

Eastern

smooth aster Symphyotrichum laeve

• Native only to Jackson County in the central Panhandle

• Has been very adaptable in my Hillsborough/Pasco County landscapes.

• Blooms mid- to late-summer

Late

purple aster Symphyotrichum patens

• Occurs in scattered locations throughout north Florida

• Adaptable to average soils and sun.

• Blooms early fall – not as late as some

Eastern silver aster Symphyotricum concolor

• Occurs statewide, including the Keys

• Prefers upland sunny welldrained soil, but adaptable

• Very late bloomer –November+

Short’s aster Symphyotrichum shortii

• Occurs naturally only in two central Panhandle counties.

• Perennial with heart-shaped basal leaves

• Can reach 4 feet tall at late summer blooming season.

• Adaptable to sun/partial sun and average soil types

Georgia aster Symphyotrichum georgianum

• Very rare aster species –even in Georgia

• Vouchered from only 1 county in the central Panhandle

• Stands 3 feet at maturity; blooms early fall

• Prefers open sunny welldrained habitats

Walter aster Symphyotrichum walteri

• Occurs throughout much of north and central Florida.

• Stands ~3 feet by fall.

• Prefers open sunny welldrained habitats

• One of the last asters to bloom

Scaleleaf aster Symphyotrichum adnatum

• Occurs throughout Florida, including the Keys

• Stands 2-3 feet at bloom season; may weep a bit depending on adjacent vegetation.

• Adaptable to growing conditions; flatwoods to sandhills

• Very last aster to bloom n my landscape.

Calamintha mints Calamintha spp.

• Although many Conradina mints are being propagated, few Calamintha species are.

• The one most widely sold (C. georgiana) is actually a hybrid and not the true species

• As perennial woody mints with attractive flowers, they should be made more available for well-drained sandy soils and sun.

Ashe’s savory Calamintha ashei

• Occurs in scrub habitat in central Florida scrublands – Ocala through Lake Wales ridges

• Mounded aspect that can reach several feet tall.

• Foliage is blue-green with folded leaves

• Flowering from spring through fall.

Scarlet calamint Calamintha coccinea

• Widely scattered populations in sunny well-drained sandhill/scrub habitat in the Panhandle and in central Florida.

• Becomes a somewhat leggy shrub that can reach 3 feet tall.

• Bright scarlet tubular flowers are produced most months from spring through fall.

• Leaves are elliptical and folded over (not needle-like?

Georgia calamint Calamintha georgiana

• Very rare in Florida; occurs in only 5 counties along the Georgia and Alabama border.

• A low-growing woody mint that rarely gets taller than 2 feet, but at least as wide.

• Semi-deciduous in winter; the foliage is NOT needle-like, but spatulate and rolled under a bit.

• Small lavender flowers are most common in fall to early winter.

New Jersey teas Ceanothus spp.

• 1. New Jersey teas are significant pollinator plants to our north – especially C. americanus. Not as much for C. microphyllus

• 2. Both of our species are widely distributed in north and central Florida in upland habitats, but neither is propagated here.

• 3. The only source I’ve seen offered for C. americanus was from an Upper Midwestern location and has not prospered here for me.

Sand lace Polygonum dentoceras

• Woody perennial endemic to central Florida scrub habitats

• Sprawling – rarely exceeding 2 feet in height, but many feet across.

• Roots along the soil surface periodically

• Numerous white flowers during most of the growing season

October flower Polygonum nesomii

• Endemic species occurring throughout much of Peninsular Florida in well-drained sunny scrub and sandhill habitats.

• Wiry stems that rarely exceed 2 feet tall

• Blooms profusely in fall

• Excellent pollinator flower

Summer farewell Dalea pinnata

• Occurs commonly from north through central Florida.

• Perennial that dies back to the ground in winter.

• Blooms late fall; stands 3-4 feet at this time.

• Buds are bright red, flowers are white and seedheads are fuzzy silver.

• Very important pollinator plant

Feay’s prairieclover

Dalea feayi

• A near endemic; occurs throughout most of peninsular Florida in sunny well-drained sands.

• Perennial that grows in a mounded form and rarely more than 3 feet in height.

• Produces rounded flower heads in summer to early fall; bright pink blooms.

• Important pollinator plant

There Are a Great Many Not Covered Here

•There has to be a market

•Markets are generated by education

•Expanding the available plant palette is all our responsibility •Otherwise, all we’re really doing is creating native plant landscapes that are “monocultures”

•The world/state cannot afford this in the wake of biodiversity collapse.

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