Tansy Tanacetum vulgare 'Isla Gold' (v)

Water

Tansy (Tanacetum vulgare 'Isla Gold') should be watered deeply to encourage root growth, but it's vital to allow the soil to dry out between waterings as this plant is drought tolerant and prefers not to be overwatered. During the active growing season in spring and summer, watering approximately once a week with about 1 inch (or about 0.623 gallons) of water should be sufficient, depending on the local weather conditions and soil drainage. In the fall and winter, reduce watering frequency as the plant goes dormant and its water requirements decrease.

Light

Tansy prefers full sun, so it's best to plant it in a location where it can receive at least 6 to 8 hours of direct sunlight each day. It can tolerate some light shade, especially in hotter climates, but full sun will ensure the most vigorous growth and best flowering results.

Temperature

Tansy can withstand a wide temperature range but thrives best in moderate conditions. It survives in temperatures as low as -30°F and as high as 90°F, but ideally, it prefers temperatures between 60°F to 75°F. Ensure that the plant is not subjected to prolonged temperatures at the extremes of its tolerance to avoid stress.

Pruning

Pruning tansy helps to maintain its shape, promote denser foliage, and encourage more vigorous growth. Cut back the plant in early spring before new growth starts, and after flowering, trim any spent flowers to encourage a second bloom. Tansy can be pruned again in late fall to tidy the plant and prepare it for winter.

Cleaning

As needed

Soil

Tansy 'Isla Gold' thrives in well-draining, sandy loam to loamy soil with a neutral to slightly alkaline pH of 6.0 to 7.5. For best results, mix two parts garden soil, one part peat moss or compost, and one part sand or perlite to ensure good drainage.

Repotting

Golden buttons or golden tansy, as Tanacetum vulgare 'Isla Gold' is commonly known, does not require frequent repotting. Repotting can be done every 2-3 years or as needed if the plant becomes root-bound or the soil appears depleted.

Humidity & Misting

Golden tansy prefers average room humidity levels. It is a hardy plant that can tolerate a range of humidity conditions and typically thrives without needing special humidity adjustments.

Suitable locations

• Indoor

  Place in bright, indirect light and ensure good airflow.

• Outdoor

  Plant in full sun to partial shade, well-drained soil.

• Hardiness zone

  3-9 USDA

Life cycle

Tanacetum vulgare 'Isla Gold', commonly known as Golden Tansy, starts its life cycle as a seed, often undergoing a period of cold stratification to break dormancy. Upon germination, it develops a rosette of finely divided, aromatic, yellow-green foliage. As it matures, the plant produces sturdy stems and a proliferation of button-like yellow flowers in the summer, which are attractive to many pollinators. After pollination, seeds develop and are dispersed by wind, allowing the plant to propagate. In the fall, Golden Tansy typically dies back to the ground in colder climates but can remain evergreen in milder regions. It completes its life cycle by regrowing from the same root system year after year, classifying it as a perennial plant.

Propogation

• Propogation time

  Late Spring-Early Summer

• Propogation: Tansy 'Isla Gold' is typically propagated by division, which is best performed in early spring or fall. To propagate by division, carefully dig up an established clump of tansy and use a sharp spade or knife to split the clump into smaller sections, ensuring each has a portion of the root system. Replant the divisions at the same depth they were originally growing, spacing them about 12 to 18 inches (30 to 45 centimeters) apart to allow room for growth. Water the new divisions thoroughly to establish them in their new locations. This method is favored for its simplicity and effectiveness in producing exact clones of the parent plant.