How often to water flowering woodbine in California
In July in the Central Valley, established flowering woodbine in loam needs a deep watering about every 20 days: about 2.2 gallons each time for a plant 2 feet across, about 0.8 gallons a week. Flowering woodbine, the European honeysuckle, is a vigorous deciduous vine that twines 10 to 20 feet up fences and trellises. Its fragrant tubular flowers open creamy white, often flushed pink or purple outside, and age to yellow, scenting the evening for moths. It likes its roots in shade and its shoots in sun, and once established it handles dry spells fairly well.
How often to water flowering woodbine, month by month
Type your city above and the days between waterings and the gallons appear here, worked out from your city's climate table. Or read the figures by climate zone further down.
How this is worked out: established roots fill the top 1.5 feet of soil, and you water again when that soil has dried halfway. Loam soil holds about 1.5 inches of water per foot. Water the whole area the plant covers, and skip a watering after a good soaking rain.
How to tell it needs water
- Soil dry 3 inches down at the base of the vine signals that flowering woodbine is ready for a soak
- Leaves wilting and flowering slowing during a long, hot spell can indicate a dry root zone, especially in full sun
- A white powdery coating on the leaves points to powdery mildew rather than thirst
- Curled, sticky new shoots point to honeysuckle aphids, not a watering problem
- Yellowing leaves over soil that stays soggy can indicate poor drainage around the roots
How to water it
- Water at the base of the vine, where shade or mulch keeps the root zone cool
- Soak the soil about a foot deep, then let the top few inches dry before watering again
- Plant in fertile, moist but well-drained soil, with the base shaded and the stems free to climb into sun
- Spread mulch over the root area, or underplant low shrubs to shade the roots
- Widen the watered area as the base thickens and the stems spread along their support
Through the seasons
Keep a new flowering woodbine evenly moist through its first summer while roots establish. Once established it is fairly tolerant of dry spells, though it does best with deep soakings when the soil dries. Flowers come in spring and summer, red berries ripen by early fall, and the leaves drop for winter. WUCOLS rates flowering woodbine low water on the north-central coast and in the Central Valley. WUCOLS has not evaluated it for the south coast, South Inland, the high desert or the low desert. Winter rain usually covers the leafless vine where it is rated.
In pots
Flowering woodbine can climb a trellis from a large container, keeping its fragrance close to a seat or doorway. Use a pot with drainage holes and a fertile, moisture-holding mix. Shade the pot itself so the roots stay cool while the vine reaches for light. Check the mix 2 inches down every few days in summer and water when it is dry there. Let excess drain, then empty the saucer. In winter, while the vine is leafless, water only when the mix starts to dry.
- A year
- 6.84 gal per sq ft
- Reference
- Sacramento climate table
- Counts
- Plant need, before sprinkler losses
Monthly water need by climate zone
Flowering Woodbine: gallons per square foot per month, by WUCOLS climate zone
| Month | N. Coast | C. Valley | S. Coast | S. Inland | Hi Desert | Lo Desert |
|---|---|---|---|---|---|---|
| Jan | 0.15 | 0.16 | – | – | – | – |
| Feb | 0.21 | 0.26 | – | – | – | – |
| Mar | 0.35 | 0.43 | – | – | – | – |
| Apr | 0.47 | 0.61 | – | – | – | – |
| May | 0.58 | 0.83 | – | – | – | – |
| Jun | 0.64 | 0.99 | – | – | – | – |
| Jul | 0.64 | 1.07 | – | – | – | – |
| Aug | 0.6 | 0.95 | – | – | – | – |
| Sep | 0.5 | 0.72 | – | – | – | – |
| Oct | 0.35 | 0.47 | – | – | – | – |
| Nov | 0.19 | 0.22 | – | – | – | – |
| Dec | 0.12 | 0.14 | – | – | – | – |
| Year | 4.8 | 6.84 | – | – | – | – |
How this is worked out: the WUCOLS water rating for each zone times that zone’s climate for the month. A dash means WUCOLS does not rate the plant there. The figures are what the plant uses, before sprinkler losses.
Plants with the same water needs 8
Rated low water in the Central Valley, like flowering woodbine. Plants that drink alike can share one valve and one schedule.
BougainvilleaBougainvillea & spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
WisteriaWisteria spp. & cvs.low water, Central Valley1.07 gal/sq ft in July
FleeceflowerFallopia baldschuanica (Polygonum aubertii)low water, Central Valley1.07 gal/sq ft in July
Carolina JessamineGelsemium sempervirenslow water, Central Valley1.07 gal/sq ft in July
Cecile Brunner RoseRosa 'Cecile Brunner'low water, Central Valley1.07 gal/sq ft in July
Lady Banks RoseRosa banksiaelow water, Central Valley1.07 gal/sq ft in July
Roger's Red GrapeVitis 'Roger's Red'low water, Central Valley1.07 gal/sq ft in July
Blue Dawn Morning GloryIpomoea acuminatalow water, Central Valley1.07 gal/sq ft in JulyTurn this into minutes on your water days
Every city page has a calculator that takes flowering woodbine, your sprinkler type and the month, and gives the minutes per water day for that supplier's schedule. Or put it in a zone of the personal watering plan and get all twelve months printed.
Questions people ask
How much water does flowering woodbine need per day?
In July in the Central Valley, established flowering woodbine needs about 0.1 gallons a day for a plant 2 feet across and about 0.4 gallons a day for a plant 4 feet across. Give it in deep waterings spread days apart rather than a little every day, so the whole root zone gets wet.
Does watering for flowering woodbine change across California?
Yes. WUCOLS rates flowering woodbine separately for each of the six California climate zones: low water in the North-Central Coastal zone, low water in the Central Valley zone, not evaluated in the South Coastal zone, not evaluated in the South Inland zone, not evaluated in the High and Intermediate Desert zone, not evaluated in the Low Desert zone. The monthly table above shows how the same rating translates into different gallon amounts as reference evapotranspiration changes.
Are woodbine berries edible?
No. The glossy red berries are ornamental and not to be eaten. Keep children and pets away from them, and wear gloves when handling the plant.
When should I prune flowering woodbine?
Prune after flowering. It blooms on old growth, so heavy pruning before bloom removes flowers. In a wildlife garden it needs little or no pruning.
Why does woodbine smell stronger at night?
Its fragrance is most noticeable after dark, when it draws the moths that pollinate it. Plant it near a patio or window you use in the evening.
Can you overwater flowering woodbine?
Yes. It likes moist soil but needs good drainage. Let the upper soil dry between soakings, especially in clay.
Does flowering woodbine need shade?
It grows best with its roots shaded and its stems climbing toward the sun, and it tolerates full sun. Partial shade suits it well. A shaded root zone also dries more slowly.
More plant watering guides
Sources
- WUCOLS IV plant water use classification for Lonicera periclymenum, the University of California survey California agencies use for landscape plan reviewRead August 23, 2026 on wucols.ucdavis.edu
- Model Water Efficient Landscape Ordinance, adopted text and appendices, effective 2025-01-02 · monthly reference evapotranspiration per city, Appendix CRead August 23, 2026 on water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/Water-Use-And-Efficiency/MWELO-Rulemaking/Final-MWELO-Text-and-Appendices_20250103.pdf
- UC Statewide IPM Program, irrigation scheduling using evapotranspirationRead September 30, 2026 on ipm.ucanr.edu/PMG/GARDEN/ENVIRON/evap.html
- Shaw and Pittenger, Landscape Irrigation System Evaluation and Management, UC Cooperative Extension, 2009Read September 30, 2026 on ucanr.edu/sites/default/files/2013-02/160836.pdf
- Pittenger, Water Management in Gardens and Landscapes, UC Riverside, 2017Read September 30, 2026 on ucanr.edu/sites/default/files/2017-03/258022.pdf