Your query has been submitted to Mr Henry Eckford, of Coleshill Gardens, the raiser of some of the finest Verbenas now in cultivation, and the following is his reply: - "In reply to your correspondent, Verbena, I have to say Verbenas may be kept in a cold frame; in fact some amateur cultivators in this neighbourhood keep them under common hand-lights - of course for want of better accommodation - and sometimes are tolerably fortunate. Although they dislike much dry heat, yet to keep them successfully they require a house or pit where a little heat can be applied in case of long-continued dull cold weather".