Boston Ivy

A vigorous self-clinging vine with glossy, three-lobed leaves that turn brilliant shades of scarlet and crimson in autumn. Boston ivy is the classic vine for covering large masonry walls, as seen on ivy-covered university buildings. Tiny flowers produce blue-black berries that are valuable food for birds.

Boston ivy can be grown from seed extracted from ripe blue-black berries in autumn. Clean seeds from the pulp and cold-stratify in moist sand for two to three months. Sow in spring in pots of standard potting mix. Germination typically occurs within three to six weeks. Seedlings grow rapidly once established. Semi-ripe cuttings taken in midsummer are faster, rooting in four to six weeks with rooting hormone. Layering works well for creating a few new plants from existing vines.

The Season Plate

Your Boston Ivy Year

Composed for Zone 7 · typical seasons · frost passes Apr 2, returns Nov 1

Sow Boston Ivy Mar – May, pick Sep – Oct. Set your climate below and every date on this plate re-times itself.

Sowing window

Mar – May

re-timed to your frost dates

Plant out

after Apr 2

once frost risk has passed

First picking

around Mar 14

≈ 730 days from sowing · 5 to per plant

Composed for —ColdTemperateMildWarmUse my locationUsed once to set your season · only the zone is kept

Week-by-week Boston Ivy reminders watering, feeding and pruning, timed to your dates

In the app

Frost alerts for your garden a warning before a cold night costs you the crop

In the app

Succession sowing dates so the picking never gaps mid-season

In the app

Prefer email? Get monthly reminders in the Almanac

Keep my dates — free for 7 daysWe nudge you as each window opens · cancel anytime

Plant Boston ivy in spring or autumn in any reasonable garden soil, from full sun to partial shade. This vigorous self-clinging vine attaches to surfaces by adhesive discs at the tips of its tendrils and can cover enormous walls, eventually reaching sixty feet or more. It is the classic vine of ivy-covered college buildings and provides spectacular autumn color in brilliant shades of scarlet and crimson.

Boston ivy is remarkably adaptable and low-maintenance once established. It tolerates urban pollution, poor soil, and both dry and moist conditions. Water regularly during the first year to establish, then supplemental watering is rarely needed. Feed with a balanced granular fertilizer in early spring for the first few years. Established vines on rich soil rarely need feeding.

Prune in late winter to keep the vine within its intended boundaries, removing growth from windows, gutters, and areas where it is unwanted. Boston ivy grows rapidly, potentially adding six to ten feet per year, and requires annual trimming to prevent it from covering everything in sight. The adhesive discs can leave marks on surfaces when removed, so consider this when choosing a planting location. On sound masonry, the vine actually protects walls from weather damage.

Boston ivy is typically used as a standalone wall covering rather than combined with other climbers. Its dense foliage creates deep shade at the base of walls, making it a good backdrop for shade-tolerant plants like ferns, hostas, and woodland wildflowers. Spring bulbs can be planted at the base to provide early interest before the vine leafs out. Keep the vine from spreading into adjacent garden areas where it could smother smaller plants.

The Society Table

Engelman's Ivy belongs beside it.

Old growers' knowledge, checked against Boston Ivy's real companion table below — test any plant you're growing.

Grows well in the company of · 2

Engelman's IvyVirginia Creeper

Keep apart · 0

no recorded foes

Plant Boston Ivy with good neighboursThe planner flags conflicts before they're in the ground

Boston ivy grows in virtually any soil type from sandy to heavy clay, with a pH of 5.5 to 8.0. It is remarkably unfussy about soil conditions and thrives in both rich and poor soils. No supplemental fertilization is needed for established plants on average soil. For newly planted vines, a balanced granular fertilizer in spring for the first two to three years accelerates establishment. Mulch is beneficial but not essential.

Ideal Temperature

Hardiness Zone Compatibility

Boston ivy is grown for its architectural foliage rather than flowers or fruit. Cut leafy stems for greenery in floral arrangements throughout the growing season. The autumn color is particularly stunning and cut branches of scarlet and crimson foliage make spectacular additions to fall displays. The small blue-black berries produced in autumn are a valuable food source for birds but are not edible for humans. Stems in water last about a week.

Storage & Preservation

Boston ivy requires no special storage as a fully hardy deciduous vine. Autumn leaves can be pressed for crafts and preservation, maintaining their rich red coloring when dried between sheets of paper with silica gel. For propagation, take semi-ripe cuttings in midsummer or hardwood cuttings in late autumn. Cuttings root readily. Layering is also effective. Seeds extracted from ripe berries need cold stratification before spring sowing.

Troubleshooting Common Problems

The main concerns with Boston ivy are managing its aggressive growth and the marks left by adhesive discs when the vine is removed from surfaces. On sound masonry, the vine is generally beneficial, insulating walls and protecting them from rain. On painted surfaces, wood siding, and old mortar, the adhesive discs can cause damage. The vine must be kept clear of windows, gutters, and rooflines with regular pruning. The berries are mildly toxic if ingested.

Growing Tips

1. Plant Boston ivy at the base of a wall with the root ball positioned 15 to 20 centimeters away from the foundation, angling the stems toward the surface to encourage attachment.
2. For the first one to two years, provide temporary support such as small stakes, string, or a short trellis section to guide young stems toward the wall until adhesive discs form secure attachments.
3. Boston ivy grows on virtually any surface including brick, stone, concrete, stucco, and wood, but avoid planting against walls with deteriorating mortar or loose paint, as adhesive discs can worsen existing damage.
4. Choose a planting location that receives at least four hours of direct sunlight daily for the best autumn color display. Plants in heavy shade will grow but produce less vibrant fall foliage.
5. Water deeply once per week during the first two growing seasons to establish a strong root system. Once established, Boston ivy is remarkably drought-tolerant and rarely needs supplemental irrigation.
6. Apply a 7 to 10 centimeter layer of organic mulch around the base of the plant, keeping it 5 centimeters away from the stem to prevent crown rot while retaining soil moisture.
7. Prune two to three times during the growing season to prevent stems from growing into gutters, under roof shingles, over window frames, or into exterior vents where they can cause structural issues.
8. If you need to remove Boston ivy from a wall, cut all stems at the base and allow the upper growth to die and dry out for several weeks before pulling it away. This reduces wall damage compared to removing living vines.
9. Boston ivy can be propagated easily from semi-hardwood cuttings taken in mid to late summer. Take 15 centimeter cuttings, remove the lower leaves, dip in rooting hormone, and plant in moist potting mix.
10. In windy or exposed locations, secure young stems loosely with soft ties until they develop strong adhesive disc attachments, which typically takes one to two growing seasons on smooth surfaces.