20 Russian Hollyhock Seeds,Alcea rugosa,Lemon /Yellow ,Single Flowered. 20 Russian Hollyhock Seeds,Alcea rugosa,Lemon /Yellow ,Single Flowered. Alcea rugosa Russian Hollyhock A robust species of hollyhock from Russia and Ukraine with clear-yellow flowers on hairy stems above deeply-lobed leaves. The classical features of this plant make it the perfect addition to cottage gardens; it is equally at home planted at the back of the border, as an accent plant, or in cutting gardens. Very hardy and drought tolerant once established. Much more perennial in habit than other hollyhock species.Hollyhock Seeds Hollyhock Seeds - Classic, single blooms fill the tall stalks of Hollyhock Henry The Eighth. This beautiful lemon yellow variety is a perennial. A favorite for its cheerful bloom and towering height - up to 8 feet! Hollyhocks need full sun but are very tolerant of soil type and can easily grow on very poor soil, in fact they prefer a poorer soil and produce better flowers than on rich soils. Must be fairly well drained cannot tolerate waterlogged soils or those that become waterlogged in the winter months. pH should be in generally neutral range although a little acid or alkaline is tolerated it will not grow in soils that are very strongly one of the other. Grow in a sheltered site as the flower stalks are long and can be blown over in high winds. Up against a fence, wall or side of a building is excellent. IN hotter climates - zones 8 -9 shelter from the heat, try growing on the north side of structures to help keep them cool in the heat of the summer. Staking may be necessary as stalks grow taller or they can bend and droop over. Plants can be pinched out as they begin to form stalks to encourage them to branch.