English ivy (Hedera helix) prefers evenly moist soil that is allowed to dry slightly between waterings. Water English ivy when the top inch of soil feels dry to the touch, which is often about once every five to seven days in active growth. In winter, reduce watering for English ivy to roughly once every ten to fourteen days as growth slows. English ivy is sensitive to soggy roots, so empty the saucer after watering and never leave the pot standing in water. Overwatering English ivy is a more common cause of decline than underwatering.
English ivy (Hedera helix) grows best in bright, indirect light near an east- or north-facing window. English ivy tolerates medium light but will produce sparse, leggy growth in deep shade. Variegated forms of English ivy need brighter indirect light to keep their cream and white markings. Direct midday sun can scorch the leaves of English ivy, so filter strong light with a sheer curtain. Rotate English ivy a quarter turn each week so growth stays even on all sides.
The cited reference lists English ivy (Hedera helix) as toxic to cats and dogs; ingestion can cause vomiting, excessive drooling, abdominal pain, and diarrhea. The toxic compounds in English ivy are triterpenoid saponins, with the foliage considered more hazardous than the berries. Keep English ivy out of reach of pets, and contact a veterinarian or a poison-control line if ingestion is suspected. Handling the sap of English ivy can also cause skin irritation in some people, so wash your hands after pruning.
English ivy (Hedera helix) grows well in a well-draining, peat-based potting mix amended with perlite for aeration. Choose a pot for English ivy with drainage holes to prevent water from pooling at the roots. Repot English ivy every one to two years in spring, moving up just one pot size at a time. English ivy prefers a slightly snug root ball and may sulk if given a container that is far too large. Refresh the top layer of soil annually for English ivy when a full repotting is not needed.
Spider mites are the most common pest on English ivy (Hedera helix), especially in warm, dry indoor air. Browning, crispy leaf edges on English ivy usually signal low humidity or inconsistent watering. Yellowing leaves on English ivy often point to overwatering or poor drainage at the roots. Leggy, sparse stems on English ivy indicate insufficient light, so move the plant to a brighter spot. Mist English ivy or group it with other plants to raise humidity and discourage spider mites.