Roughly X thanks
2007-01-04 21:51:58 · 8 answers · asked by C 3 in Pets ➔ Dogs
Any dog is usually fully grown at around the age of 1.
Some dogs may develop sooner, depending on the diet and exercise they recieve.
2007-01-05 02:29:40 · answer #1 · answered by Anonymous · 0⤊ 0⤋
After 9-12 months
2007-01-05 05:53:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You can expect a Jack Russell Terrier to reach adult height at about 8 months (any further growth will be minimal) and adult weight at 12-18 months.
2007-01-05 06:00:28 · answer #3 · answered by PetLover 4 · 0⤊ 0⤋
As an ex-postman who has been bitten by these particular dogs more than any other, i feel i'm qualified to say between 8 and 12 months; or more importantly for the postman when they are agile enough to jump up and bite yer bottom. Happy new year.
2007-01-05 06:10:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Technically they are grown at one year old, but Russies maintain some puppy characteristics until they're about two. By the time he's three, he probably won't be so hyper.
2007-01-05 05:56:40 · answer #5 · answered by cruztacean1964 5 · 0⤊ 0⤋
8months for small dogs i have a jack russel x yorkie and she was fully grown at 8months
2007-01-05 06:38:59 · answer #6 · answered by Heavenly20 4 · 0⤊ 0⤋
http://www.trinityfarmskennel.com/page11.html this tell you all you need to know about jack Russell's good luck best wishes
2007-01-05 05:56:23 · answer #7 · answered by Anonymous · 0⤊ 0⤋
they dont, they stay tiny little dogs all their life
2007-01-05 05:53:51 · answer #8 · answered by qwerty 3 · 0⤊ 2⤋