How many plants for average family:
3 or 4 plants per family

Type of plant:
annual

Best Varieties:

Sowing:
Direct at fortnightly intervals for continuous crop.
Transplanting larger seedlings can lead to the plant bolting to seed.
Best sown as mid season plants (i.e. Spring and Autumn)

Growing Habit:
Loose, feathery plant to 90 cm high.

Growing Conditions:
Needs mild conditions to do best.
Full sun required.
Plant between cabbage family plants to repel cabbage white butterfly.
Allow some plants to go to seed to attract beneficial insects into the garden.

Companions:
Beetroot, broccoli, Brussels sprouts, cabbage, cauliflower, celery, coriander, cucumber, tomato.

Problems:
Frost sensitive.
Can bolt to seed in extended hot/dry conditions.

Uses:
Great compliment to fish dishes and sauces.
Good companion for planting.
Pretty flowers for medium height backdrop in ornamental garden.

For further information:

dill
Anethum graveolens. syn: Peucedanum graveolens. Fam: Umbelliferae. The word "dill" comes from the Norse "dilla", meaning "to lull". Drinking dill tea is recommended to overcome insomnia.
http://www.theepicentre.com/Spices/dill.html

Dill (Anethum graveolens)
The Herb Guide features articles and information on growing and using herbs. ... Caraway Catnip Cayenne Chamomile Chervil Chives Coriander Dill English Mallow Feverfew Fennel Garlic Goldenrod Hawthorne ... Dill is one of the easiest herbs to grow and would make a ...
http://www.gardenguides.com/herbs/dill.htm

McCormick - Spice Encyclopedia - Dill
All about Dill -- description, uses, origins, folklore and recipes. The McCormick Spice Encyclopedia is the definitive resource on herbs and spices. Dictionary style reference guide includes photos and illustrations, usage tips, spice history. ... Dill Weed is used with fish and shellfish, cottage and cream cheese, and with tomato juice beverages ...
http://www.mccormick.com/content.cfm?id=8204

botanical.com - A Modern Herbal | Dill - Herb Profile and Information
Providing botanical, folk-lore and herbal information, plus organic herbs, and herbal products. ... Dill. Botanical: Peucedanum graveolens (BENTH.) Family: N.O ... Dill is a hardy annual, a native of the Mediterranean region and Southern Russia ...
http://www.botanical.com/botanical/mgmh/d/dill--13.html