Tarantula (April) Tarantula (August) Tarantula Downy, silvery, red. £3.40 Leaves densely covered with silvery hairs over a reddish base. Like the spider's legs presumably, which will no doubt freak out some people! Most Semp lovers like 'spiders' (the S. arachnoideum or cobwebbed types), if not actual spiders. Sue Thomas (GB) 2000 Sent in 9cm pots as growing, established plants.