That's why it sounds so dry. Now keep in mind that this assumes that when you say "dry" you're referring to the common studio parlance where "dry" more correctly means "lacking any room sound or reverberance."
Not to worry. This is easily remedied. Contrary to popular belief, reverb on a bass track in the studio can be a very effective tool. The key is not getting carried away. You can do this in one of two ways:
1. Use a convolver plug-in and an impulse response of a mic'd cabinet. Find one that utilizes a cabinet and a mic that you like, and ideally one that specifies the mic's position and distance from the cab. Back when I was using impulse responses I had good luck with Red Wire Impulse Responses (
www.redwirez.com). Not free, but pretty darn good. There are probably other options that are lower cost/free, or possibly ones of higher quality, but I'm a little out of that world these days so I can't say for certain.
2. Use a reverb plug-in, either an algorithmic one or an impulse response based one. I'm a big fan of Valhalla DSP's "Valhalla Room" algorithmic reverb plug-in. A common approach I use for bass guitar with Valhalla Room in a mix goes like this: First I setup a buss that begins with a high pass filter set to around 80hz at 12-18db/oct (depending on the sound I'm after). After the high pass filter I'll add an instance of Valhalla Room using one of the included studio "room" presets. I'm not normally a presets guy, but Valhalla did a REALLY nice job with these. Set the mix value to 100%. Now on the track where your bass guitar lives add an aux send to the buss you created in the previous steps. Set this to send around 24db below the source track. Now your bass tone is going to a buss, having everything below 80hz filtered out at 12-18db/oct and then what's left gets reverb applied to it 24db below your "dry" track. This results in a more three dimensional and "realistic" bass sound, but doesn't allow things to get muddy because no real low end ends up in the reverb plug-in. It's a subtle difference, but you'll notice it when you mute and un-mute the aux send on the bass channel.
I use a process that's nearly the inverse of that for RnB tracks where I want that big 90s Mariah Carey album type bass sound that's sort of ill-defined, but absolutely envelopes the track. That's a story for another day...