Physocarpus opulifolius 'Brown Sugar'Physocarpus opulifolius 'Brown Sugar'Spiraea opulifolius, Ninebark

Plant Physocarpus in a fertile, moist, well-drained soil in full sun or semi-shade. Physocarpus plants prefer an acid to neutral soil, but will tolerate more alkaline soils, although may they may become chlorotic in very chalky areas. Incorporate organic matter such as well-rotted manure or compost into the soil prior to planting.

Water regularly throughout the growing season until young Physocarpus plants are fully established. In spring, apply a mulch of well rotted manure or compost to the base of the plant. After flowering, cut back the flowered shoots to a healthy pair of buds, unless seedheads are required for late season interest. Physocarpus opulifolius tolerates fairly hard pruning and may be cut back by half every few years to maintain a smaller size. On mature plants cut back about one quarter to one fifth of the oldest shoots to their base, to promote strong new growth.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £5.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Thompson & Morgan strives to ensure that all its plants are delivered to you in the perfect condition for planting. Sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this, so regretfully we are unable to ship live plants to the following areas: HS, IV41-IV49, IV51, IV55-56, KW15-KW17, PA34, PA41-48, PA60-PA78, PA80, PH40-PH44, TR21-TR24, ZE1-ZE3