100 
OPERATIONS FOR MAY. 
those occupied by the common yellow flag-, (/ris pseud-acorns ') ; where it is fre- 
quently under water, whenever the river rises a little above its ordinary level and 
the C. longifolium in North America, is cultivated as an aquatic, being- planted in 
ponds and reservoirs the same as water-lilies ; these are all increased by suckers 
from the root, or by a kind of bulbiferous seed which they occasionally ripen, parti- 
cularly the Botany Bay lily (C. pedunculatum), When they are shy in throwing- 
up suckers, cutting- down near to the root will cause them to produce abundance ; 
indeed, if the bulbs are wounded by any means, the same effects are produced. 
OPERATIONS FOR MAY. 
Auriculas when out of flower must be potted about the end of the month, 
after the manner recommended in page 11. Place those plants intended to produce 
seed under a south wall as soon as the flowers fade, and give them a good supply of 
water. 
Biennials which have been raised on a slight hotbed may be transplanted in 
the open borders or pots about the end. See page 66. 
Camellias being now in a growing state require a brisk warmth. See 
page 33. 
Carnations.-— About the middle of May sow the seeds; and about the end 
give the flowering plants a top-dressing- of leaf mould and sheep dung. See 
page 69. 
Chrysanthemum Indicum. — Pot the best suckers for flowering next season. 
Dahlias. — Transplant seedlings, as recommended last month, page 67. 
Erica.- — Cuttings, plant and treat as recommended last month, page 67. 
Ipomopsis elegans should be treated as recommended in page 27. 
Hollyhocks may be parted at the roots in the beginning of the month. 
Mimulus floribundus, and other annual species, should now be carefully 
thinned, or they are very apt to damp off. See page 29. 
Passiflora kermesina, and other species, may be propagated by cuttings in 
the beginning of the month, page 25. 
Polyanthuses. — -Seedlings will now require transplanting. 
Orange-trees may now be grafted. 
Ranunculuses. — Plant early in the month for flowering in August. See 
page 42. 
Rose Trees. — Cuttings of the China and its varieties may now be put in, under 
. a hand-glass, in light soil, on a shady border. The French kinds, which were left 
unpruned at the usual pruning season, in order to produce late flowers, may be cut 
as follows : - as soon as the new shoots are an inch long, cut back all the old wood 
below where the new shoots have pushed. 
Violets. — Runners may now be collected and planted. 
* Botanical Register, fol. 54 6. 
