River Farm — a botanical garden in Fairfax County, Virginia — is a lesser-known subject for landscape photographers. It sits roughly 1.6 km (1.0 mi) NE of Fort Hunt.
River Farm, permanent home to the American Horticultural Society (AHS) headquarters, is a 27-acre (11 ha) landscape located at 7931 East Boulevard Drive, Alexandria, Virginia. The estate takes its name from a larger plot of land which formed an outlying part of George Washington's Mount Vernon estate.From the Wikipedia article “River Farm”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At River Farm the sunrise point swings a long way through the year: about 59° (ENE) at the June solstice and 120° (ESE) in late December. Sunset moves from 302° (WNW) in June to 240° (WSW) in December, and the midday sun climbs to 75° in summer but only 28° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:13 AM | 90° E | 7:20 PM | 271° W | 51° | 12h 08m |
| June solstice (Jun 21) | 5:44 AM | 59° ENE | 8:37 PM | 302° WNW | 75° | 14h 53m |
| September equinox (Sep 22) | 6:57 AM | 89° E | 7:07 PM | 271° W | 52° | 12h 10m |
| December solstice (Dec 21) | 7:23 AM | 120° ESE | 4:51 PM | 240° WSW | 28° | 9h 27m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Gardens are best on bright overcast days or early mornings when dew is fresh and the wind is calm.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:56 AM | 7:26 AM | 8:06 AM | 4:30 PM | 5:11 PM | 5:40 PM | 9h 45m |
| February | 6:33 AM | 7:00 AM | 7:37 AM | 5:09 PM | 5:46 PM | 6:13 PM | 10h 46m |
| March | 6:54 AM | 7:20 AM | 7:56 AM | 6:40 PM | 7:15 PM | 7:42 PM | 11h 55m |
| April | 6:05 AM | 6:33 AM | 7:08 AM | 7:09 PM | 7:45 PM | 8:12 PM | 13h 12m |
| May | 5:27 AM | 5:57 AM | 6:35 AM | 7:36 PM | 8:14 PM | 8:44 PM | 14h 17m |
| June | 5:12 AM | 5:44 AM | 6:23 AM | 7:56 PM | 8:35 PM | 9:07 PM | 14h 52m |
| July | 5:25 AM | 5:56 AM | 6:35 AM | 7:54 PM | 8:33 PM | 9:04 PM | 14h 37m |
| August | 5:54 AM | 6:23 AM | 6:59 AM | 7:28 PM | 8:04 PM | 8:33 PM | 13h 42m |
| September | 6:24 AM | 6:50 AM | 7:25 AM | 6:43 PM | 7:18 PM | 7:45 PM | 12h 28m |
| October | 6:51 AM | 7:18 AM | 7:54 AM | 5:55 PM | 6:31 PM | 6:58 PM | 11h 13m |
| November | 6:23 AM | 6:51 AM | 7:30 AM | 4:17 PM | 4:56 PM | 5:24 PM | 10h 05m |
| December | 6:50 AM | 7:20 AM | 8:02 AM | 4:07 PM | 4:48 PM | 5:18 PM | 9h 28m |
Local time (America/New York), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From River Farm, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.2 hours on a moonless night), and the core peaks around 22° above the southern horizon. Our light-pollution model puts the sky at about Bortle 8 (city sky), so expect visible sky glow; drive away from towns for better results.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -2° | — |
| February | 5:15 AM – 5:25 AM | 0.2 | 12° | SE → SE |
| March | 4:24 AM – 5:44 AM | 1.3 | 19° | SE → SSE |
| April | 2:20 AM – 4:50 AM | 2.5 | 22° | SE → S |
| May | 12:21 AM – 4:01 AM | 3.7 | 22° | SE → S |
| June | 10:33 PM – 3:43 AM | 5.2 | 22° | SE → SSW |
| July | 10:26 PM – 2:16 AM | 3.8 | 22° | SSE → SW |
| August | 9:43 PM – 12:13 AM | 2.5 | 22° | S → SW |
| September | 8:48 PM – 10:08 PM | 1.3 | 19° | SSW → SW |
| October | 8:00 PM – 8:20 PM | 0.3 | 12° | SW → SW |
| November | Below 10° in darkness | — | 0° | — |
| December | Below 10° in darkness | — | -19° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 8 Bortle 8 — City sky. Only bright constellations are visible; the sky glows orange or white. Modeled zenith brightness ≈ 18.21 mag/arcsec². Aurora needs roughly Kp 7.5+ to show low on the northern horizon here.
Weather & best season
Long-term NASA satellite data for this area show September as the clearest month (about 52% average cloud cover) and May as the cloudiest (61%). July is the warmest month and January the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 76 | 76 | 81 | 95 | 93 | 100 | 106 | 105 | 99 | 98 | 80 | 76 |
| Low °F | 2 | -2 | -1 | 23 | 32 | 45 | 52 | 54 | 41 | 28 | 20 | 8 |
| Precip. (in) | 2.5 | 2.9 | 3.1 | 3.7 | 4.7 | 4.7 | 4.1 | 3.9 | 4.3 | 3.8 | 3.2 | 3.4 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this botanical garden
- Kaleidoscopic and abstract images are great for flower close-ups — try the online kaleidoscope tool.
- A macro lens or close-up filter opens a world of detail — try a shallow aperture against a soft background.
- Many gardens restrict tripods or charge for photography; check the rules before you go.
- Backlit petals glow; position yourself so the sun is behind the flower.
- Seasonal exhibits (orchids, tulips, cherry blossoms) draw crowds — arrive at opening.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
Season: Spring bulbs and blossoms, summer perennials and autumn color; glasshouses offer winter subjects.
Suggested gear: Macro lens, Diffuser, Small reflector. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of River Farm, closest first.
Lighthouse
Lighthouse
Botanical Garden
National Wildlife Refuge
State Park
Beach
State Park
Botanical Garden
Botanical GardenCampgrounds nearby (Recreation.gov)
- Fort Hunt Picnic Areas3.1 km (2.0 mi) · reservable
- Fort Washington Park Day Use Facilities3.7 km (2.3 mi) · reservable
- Fort Dupont Park Picnic Areas14.9 km (9.3 mi) · reservable
- Rock Creek Park Group Picnic Areas (Dc)25 km (15 mi) · reservable
- Carderock Recreation Area Pavilion29 km (18 mi) · reservable
FAQ
When is the best time to photograph River Farm?
What time is golden hour at River Farm?
Where does the sun rise and set at River Farm?
Can you see the Milky Way from River Farm?
Do you need a permit to photograph at River Farm?
How far is River Farm from Fort Hunt?
Sources
Location data: Wikidata, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.