SEA KALE DOUBLE WALL FLOWERS CRATAEGUS TRILOBATA. 
22; 
than any casual observer would suppose. At 
the proper season they are earthed up again 
in the same way. Suppose we should want a 
little of the Kale before the ordinary time, it 
will be hastened by putting a few barrowfuls 
of dung, hot from the heap, in the alleys and on 
the top of a portion of the piece ; this may be 
done at any time, but the ordinary method of 
covering with pots, and surrounding the pots 
with dung, is the best way if it be wanted 
very early, because the heat is longer going 
through the body of earth when the Kale is 
properly earthed up ; yet there are those, and 
we are among them, who fancy that the Kale 
never eats so sweet nor so good when grown 
in vacuum — that is, under a pot, as when it lias 
to find its way through the soil ; nor is it so 
good a colour, or so large and fine. Sea Kale 
is forced in many ways, but when it is to be 
forced under cover there is to be no earthing 
up ; it is left on the level ground, and the 
crown of the plant must be placed so as to let 
it be under the centre of the pot. In this 
case, only so many pots are used as are wanted 
for the first cut, and they must be covered up 
in those seasons according to the periods at 
which they are required for use. Many persons 
sow the seed on a patch or bed, and plant them 
out, but though it may save the ground some 
time, and be well enough when there is no 
ground to spare at sowing time, it never 
comes so fine and strong as when it is sown 
where it is to permanently grow. A good 
piece of Sea Kale will last for years, and only 
requires the surface to be dunged as soon as 
the Kale is cut ; or the dung mixed with the 
soil it is growing in, by forking it carefully in, 
so as to get it down to the roots. 
DOUBLE WALL FLOWERS. 
Nobody can tell us the reason why Double 
Wall Flowers, which are so similar to double 
stocks in form, are so very rarely raised from 
.-"'•il. Acres have been sown and planted with- 
out one double one appearing among them. 
There seems no disposition to come so ; yet 
many think they have taken every means to 
imitate the growth of stocks by seasonable 
checks, by keeping the seed till it is as old as 
it will grow at all, but without producing any 
good effects ; yet the double flower of a wall 
and that of a slock are very similar. The 
Germans, however, have produced some 
Double Wall Flowers, which are very showy, 
but they possess the organs of generation, 
which the ordinary Double Wall Flowers do 
not, and they appear to be of a very distinct 
tribe. The singular part of this affair is, 
that in these flowers, the German kind, even 
when double, lose the organs of generation ; 
the seed vessel remains, however full and 
47. 
double the flower, whereas on our Wall 
Flower, and all the varieties of it, there is a 
total absence of these — the flower is a confused 
mass of petals, many of them mis-shaped, and 
some not half developed ; precisely the same 
is the double stock, and we see no intermedi- 
ate stage of growth* There is nothing between 
the single cruciform bloom, with its pistil and 
anther, and the mass of petals, which have 
neither the one nor the other. This it is. 
that has puzzled many admirers of the flower. 
With regard to the German kind of Wall 
Flower, they would appear to be the inter- 
mediate stage between single and double, and. 
yet the more they are examined the more 
distinct they appear. We recommend those 
who have a good sort of single Wall Flower,, 
to sow in a cold frame, about the end of 
May, and when they are large enough to 
plant out, to keep them so dry as to stint their 
growth, but to take care they do not actually 
suffer. It is for the convenience of keeping 
off the rain that we recommend a frame, for 
nothing can be more hardy than a Wall Flower.. 
By keeping them very dry, and giving them 
all the sun, but taking care they do not 
actually flag, they may he thrown into that (so. 
called) diseased state, as to bring double flowers.. 
It is, at any rate, worth the trial. 
CRATAEGUS TRILOBATA. 
The tkree-lobed leaved Thorn. 
In the Annals of Horticulture, (p 53.5.)' 
we have already noticed this plant, and recom- 
mended the family to the attention of those 
who admire ornamental trees of small size. 
The annexed representation will serve to show 
that this particular kind of Thorn is not less 
deserving of attention than its allies, for it has 
