Garlic is a pungently odoriferous member of the allium family (like onions and leeks). Garlic is generally used as a spice or a seasoning rather than as a vegetable due to its extremely strong flavour. Garlic grows in large papery heads. A novice mistake is to massively overgarlic things by following instructions incorrectly. Remember that the large bulb of garlic you buy is NOT one 'clove'. The whole garlic is called a 'head' or 'knob'.
Bumblebees do not damage brickwork or wood. Some of the bumblebees which make smaller nests, Bombus pratorum and B. hortorum do sometimes chose strange places to nest. Their nests are small and in the case of B. pratorum are usually very short lived.
Ground-Nesting Wasps and Bees. A number of wasps (Hymenoptera) are found in landscapes. Females of many species have a stinger, which is their egg laying structure (ovipositor) equipped with a venom sac. Cicada killers and sand wasps are solitary nesting species that dig nesting burrows in turf. Some social wasps such as Southern yellow jackets, and bees such as bumble bees and Africanized honey bees also occasionally nest in the ground. Velvet ants, including cow killers are solitary wasps that are parasitic on ground nesting bees.