Propagation
Divide basal offsets during early summer or the leafy rosette at the apex of the fruit. This method is slow in producing fruit.
The plant may also be grown from old stems that are cut and planted.

Botanic information
Leaf: The stiff leathery lanceolate leaves are slightly recurved and have a spiny margin. The leaf tapers towards the sharply acuminate apex. 
Some cultivars have entire margins. 

Flower: The small tubulate flowers have 6-perianth segments and are arranged in a dense cone-like terminal cluster. Each flower has a reddish-yellow pointed leaf-like bract and they appear from spring to early summer.

Fruit: The fruit is fleshy; watery and is composed of imbedded berries in a dense cone-like structure. The seeds are viable but the plant may be reproduced vegetatively in order to maintain true to type.

Note:
Commercially Ananas comosus it is mainly grown in Hawaii, Cuba, Puerto Rico and Australia tolerating most well drained soil types that have reliable moisture.
The Pineapples are normally grown in rows of three or more and spaced 450mm to 750 mm (18 to 24 in) apart.

The plants produce shallow roots and care should be taken when cultivating. Mulching the ground is the preferred method of suppressing weeds. Mulches such as organic material or paper are used and fertiliser is employed depending on the soil structure, ie-sandy soils require a greater amount of fertiliser of blood and bone or low grade of sulphate of potash. 

Normally the first crop is the heaviest with diminishing yields for the next three seasons.
There are several varieties of Pineapple available ranging from large to small fruits.