Viburnum obovatum, Floral City, FL 34436, USA

Viburnum obovatum Walter

Small-leaf arrowwood, Walter's Viburnum, small-leaf arrowwood, small-leaf viburnum

Climate known 68 photographs

Every figure on this page is derived from public data by a stated rule and says its source; nothing here is written by a person or a model, except the Wikipedia passage, which is quoted and marked as such. How it is made.

Summary

Viburnum obovatum, the small-leaf viburnum or Walter's virburnum is a plant in the genus Viburnum within the family Viburnaceae. It is an evergreen to semi-evergreen shrub or small tree native to the southeastern United States where it inhabits woodlands, along stream banks, and in moist hammocks. The species typically grows 10–20 feet tall and wide, with small, glossy, oval leaves, white spring flowers borne in cymes, and blue-black drupes that provide food for birds and other wildlife. Viburnum obovatum is widely used in landscaping for privacy hedges and screens as it is tolerant of pruning, allowing it to be maintained as a dense shrub or trained into a small tree form.

Text from Wikipedia, “Viburnum obovatum”, CC BY-SA 4.0, quoted as written. Kept separate from everything derived here.

About the genus · Viburnum

Viburnum is a genus of about 150–175 species of flowering plants in the family Viburnaceae. Its current classification is based on molecular phylogeny. It was previously included in the family Caprifoliaceae.

Text from Wikipedia, “Viburnum”, CC BY-SA 4.0, quoted as written.

Family

Viburnaceae

Described by

Walter

Native to

Alabama, Florida, Georgia +1

Wild records

1275 in range· 411 open

At a glance

Warmest month

32°C

Jul, mean day; nights 24 °C (CHELSA)

Rain

1362mm/yr

12 wet months · peak Aug 201 mm (CHELSA)

Light

19–41DLI

mol/m²/day, winter to summer, open sky (CHELSA shortwave)

In short condensed by rule from the cultivation cards · not written by a person

Rain rule: a summer growing season, February to March and June to October in the northern hemisphere (February to March and June to October at the habitat, northern). Habitat rain 1362 mm a year, wettest August at 201 mm, driest November at 58 mm (habitat calendar, northern hemisphere). Open sky over the habitat: 19 to 41 mol/m²/day. Cold floor 5.5 °C (1st-percentile habitat night, NASA POWER).

Each sentence is one card's own one-line form, written by the same rule as the card (Its year, Rain, Light, Temperature); the note cannot say what a card does not. Months are given for the northern hemisphere (set your site in Settings to change this), and the habitat's own alongside. The cards · the figures.

Also known as Viburnum cassinoides Willd.; Viburnum lanceolatum Hill; Viburnum nashii Small; Viburnum obovatum var. punicifolium (Desf.) Pursh; Viburnum punicifolium Desf.

Cultivation

Its year Rain rule: a summer growing season, February to March and June to October in the northern hemisphere (February to March and June to October at the habitat, northern).

This species’ habitat figures, and what two fixed rules read from them.

The rain rule reads a summer growing season: 70% of the year's rain (1017 mm of 1362 mm) falls in February to March and June to October, warmer than the year (wet-season mean 23.2 °C against a yearly mean of 21.2 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to April and August to September.

Read from the median year of CHELSA monthly rainfall and mean temperature across the envelope cells: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve gives a season to reverse. A reading of the curves, not an observation of the plant.

Rain Habitat rain 1362 mm a year, wettest August at 201 mm, driest November at 58 mm (habitat calendar, northern hemisphere).

This species’ habitat figures, with their source.

1362 mm a year at the habitat, 1017 mm of it February to March and June to October. Wettest month August at 201 mm, driest November at 58 mm. Across the envelope cells the year's total runs 1288 mm to 1506 mm (10th to 90th percentile of each cell's own year) (median year across the envelope cells, CHELSA; habitat calendar, northern hemisphere).

CHELSA monthly precipitation, median year across the envelope cells. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light Open sky over the habitat: 19 to 41 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 19 to 41 mol/m²/day across the year (daily light integral, median year across the envelope cells, CHELSA; the lowest 10th-percentile month across the cells is 17, the highest 90th-percentile month 43).

CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.

Warmth and air Cold floor 5.5 °C (1st-percentile habitat night, NASA POWER).

This species’ habitat figures, with their source.

Temperature

Coldest: the 1st-percentile night over 44 years at the typical cell is 5.5 °C, the absolute minimum -4.6 °C, 10 frost nights in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 33.4 °C. Monthly means: coldest night 10.1 °C in January (across the envelope cells 5.9 °C to 13.3 °C), warmest day 31.7 °C in July (median year across the envelope cells, CHELSA). Cold floor: 5.5 °C, which is the 1st-percentile night over 44 years at the typical cell (NASA POWER).

NASA POWER daily minima and maxima 1981–2024 at the typical cell, without lapse correction; CHELSA monthly means, median year across the envelope cells, CHELSA. The cold floor is the figure named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity

Relative humidity at the habitat: 57 to 64% across the year (monthly means, median year across the envelope cells, CHELSA). A figure about the air, saying nothing about how the plant takes water.

CHELSA relative humidity, median year across the envelope cells.

The figures the cards read from are in Climate below, and where they came from in Natural habitat.

Climate across the habitat

day night rain 10th–90th percentile across 654 habitat cells cold quarter: the three months around the coldest night extremes over 44 years at the typical cell, marked at the edge: undated DLI, mol/m²/dayRH %each on its own scale

Figures by month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day °C	19 / 15–22	21 / 17–23	23 / 20–25	26 / 24–28	30 / 27–31	31 / 29–32	32 / 30–32	31 / 30–32	30 / 28–31	27 / 25–28	24 / 21–26	20 / 16–23
Night °C	10 / 6–13	11 / 7–14	13 / 10–16	16 / 13–18	20 / 18–22	23 / 22–24	24 / 23–25	24 / 23–25	23 / 21–24	19 / 16–21	15 / 11–18	12 / 7–15
Rain mm	76 / 55–119	81 / 66–122	105 / 90–146	69 / 60–93	74 / 59–92	186 / 145–222	192 / 153–221	201 / 164–233	168 / 118–203	84 / 68–110	58 / 49–89	68 / 54–102
DLI	21 / 19–23	25 / 23–28	32 / 31–34	39 / 38–41	41 / 40–43	39 / 37–40	38 / 37–39	35 / 34–36	31 / 30–32	27 / 25–29	22 / 21–24	19 / 17–21
RH %	58 / 58–59	58 / 57–59	57 / 56–59	57 / 56–59	58 / 57–61	62 / 61–64	63 / 62–64	64 / 63–65	63 / 61–64	60 / 58–61	59 / 57–59	59 / 58–59

Each figure is the median across the 654 grid cells holding the 1198 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. Extremes and elevation were read at the typical cell 1200:1969 (29.975, -81.525). Over 44 years there: absolute minimum -4.6 °C, 1st-percentile night 5.5 °C, 99th-percentile day 33.4 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Envelope: median and 10th–90th percentile of each month across the 654 distinct grid cells holding the 1198 in-range records; extremes and elevation at the typical cell 1200:1969 (its coldest month's mean night nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 30.00_-81.250, no lapse correction (POWER gave no cell elevation). Elevation: ETOPO 2022, 5 m (cell mean).

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing: the climate was read across every in-range record's cell, not at the marker.

Openly licensed records inside the range, framed on where they fall.

NativeAlabama, Florida, Georgia, South Carolina

Kew's description“shrub or tree” · “temperate”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here

Map marker28.466, -82.172 · in the densest population, 846 records (66% of those in range)

Evidence usedThe map marker and the climate envelope rest on all 1275 georeferenced records inside the native range; the map shows only the 411 openly licensed ones, which alone would put the marker 295 km away. 24 records outside the range (gardens, roadsides, misidentifications) ignored. 77 in-range records are placed to worse than 10 km and stay on the map but off the climate.

The map markerthe map marker: the openly licensed record nearest the middle of the densest 1° population of the 1275 in-range records; it decides nothing.

Photographs

Photographs: (c) Athena Philips, some rights reserved (CC BY); (c) mfeaver, some rights reserved (CC BY) (3); (c) Leila Dasher, some rights reserved (CC BY) (3); no rights reserved · CC0.

Photographs: iNaturalist did not answer when this page was built; what is shown came from the sources that did.

Papers naming this species

Works whose title or abstract names Viburnum obovatum, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

Container and Field Evaluation of Three Native Shrubs Grown in Compost-Based Media

Sandra B. Wilson, Laurie K. Mecca, Helen E. Danielson, D. A. Graetz (2006) · Compost Science & Utilization

Selecting and Assessing Underutilized Trees for Diverse Urban Forests: A Participatory Research Approach

Deborah R. Hilbert, Andrew K. Koeser, Lara A. Roman, Michael G. Andreu (2022) · Frontiers in Ecology and Evolution

Plant Performance and Nutrient Losses during Containerized Landscape Shrub Production using Composted Dairy Manure Solids as a Peat Substitute in Substrate

Amy L. Shober, Christine Wiese, Geoffrey C. Denny, C. D. Stanley (2011) · HortTechnology

HOST STATUS OF WOODY ORNAMENTAL PLANTS NATIVE TO SOUTHEASTERN U.S.A. TO THREE MELOIDOGYNE SPECIES

J. N. Sharma, J. R. Rich (2005) · Nematropica

Evaluation of Plant Growth and Flowering Performance of Florida Native and Non-native Ornamentals under Varying Irrigation

J. J. da Silva, Sandra B. Wilson, Gary W. Knox, Rachel E. Mallinger (2024) · HortTechnology

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