Wetra 2 Litre Potted Red Polyantha Garden Rose Plant Polyanthas are well loved for their profuse clusters of ever flowering blooms. This variety has striking red blooms with deep green foliage producing flowers from late spring right through till early autumn.. They are a compact variety which are easy to care for & disease-resistant, making them ideal for borders, hedges, or pots on the patio. A ground covering rose. Supplied as a 2 Litre potted plant.